Mazda 3 Forums UK

General Category => Mazda 3 => Topic started by: daiking on June 16, 2007, 09:32:27 AM

Title: The Mazda 3 Fuel Economy Thread
Post by: daiking on June 16, 2007, 09:32:27 AM
To save us taking the fuel computer thread off on a tangent, feel free to use the same or different details but you get the idea:

Car: 1.6 TS Manual
Reg: 06
Mileage: 12000
Normal Driving: Commute = 17 miles each way - 5 miles rush hour urban, 12 miles rush hour motorway, some sub-urban trips <10miles, occasional longer trips

All calculated on a tank by tank basis

Average MPG: 35.0
Best MPG: 45.2
Worst MPG: 30.6
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Coulda on June 26, 2007, 07:54:28 AM
our Gallon is smaller but heres mine....

computer usually says 28 mpg but its actually 25... my best is 27 and my worse is 19(chasing a porche is expensive)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stonyb on August 25, 2007, 08:16:46 PM
TS2 - 1.6 diesel (regd 56)

Only 5,000 miles on the clock  - about 60% of my mileage is local around town (round trips of about 10 miles) - with occasional  250 mile stint.

Fuel consumption (current) - 52 mpg (both computer and brim to brim checks). It was just shy of 50 mpg when I bought it (2,300 mls on the clock).

Does not seem to be a lot of difference between the consumption on local or longer journeys.

Peter
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on August 25, 2007, 09:16:37 PM
TS2 - 1.6 diesel (regd 56)

Only 5,000 miles on the clock  - about 60% of my mileage is local around town (round trips of about 10 miles) - with occasional  250 mile stint.

Fuel consumption (current) - 52 mpg (both computer and brim to brim checks). It was just shy of 50 mpg when I bought it (2,300 mls on the clock).

Does not seem to be a lot of difference between the consumption on local or longer journeys.

Peter

Whats your oil consumption like?

If its still heavy that would indicate your engines gonna take a while a longer to run in. My Golf diesel only ran in till about 25K. But thats 'cos the previously owner granny'd it too much!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stonyb on August 26, 2007, 12:40:20 PM
Oil consumption negligible - I did put about 250ml last week but according to the dipstick it barely needed that, and that was the first oil I have put in since having the car (2,700 miles ago) and I suspect since the car was made.

The oil I used was Castrol Magnatec  - I couldn't see anything in the owners manual about what type of oil to use (standard, semi-synthetic, or synthetic).

P
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on August 26, 2007, 12:45:21 PM
Just had my car serviced and I've lost 2mpg (nearly 6%) :(. I think its because they reduced my tyre pressures at the service - I've been using 3-4psi above the recommended to improve the mpg and not noticed any uneven tyre wear.

Not had to put any oil in my 1.6 petrol over the first year although it did drop to about halfway between min/max on the dipstick. All changed now.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on September 20, 2007, 10:57:35 AM
For those that might be interested, having just done a 2,000 mile trip mostly on Motorways in France I thought these figures might be worth publishing.

Ltrs                   274.19
Galls                   60.32
Cost                £261.06
Average MPG        34.96
Total Miles          2022.2

One interesting set of numbers was for part of one leg of the journey From Millau to Paris
191 miles at a constant 100 mph (160kph) returned 33.67mpg. I was pleasantly suprised by that.

The car performed faultlessly and was admired by several people who actually came up and asked me about it.
I only saw 3 other Mazda3's during my entire journey so I guess they are fairly uncommon in France.

Some piccies available here http://www.mazda3forums.co.uk/index.php?topic=192.15 (http://www.mazda3forums.co.uk/index.php?topic=192.15) (Scroll down the page a bit)

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Danno on November 09, 2007, 11:10:23 AM

I definitely get the 34-35 mpg average mentioned in 'What Car'. Mine's a '05 2.0. Great car, definitely one of the best value new cars on the market.  O0
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mazda3-mike on November 09, 2007, 11:47:01 AM
Danno,

what miles do you get from a full tank, on average, please as we ar looking to get the 2 ltr sports saloon?

Mike
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Danno on November 09, 2007, 12:17:53 PM
Danno,

what miles do you get from a full tank, on average, please as we ar looking to get the 2 ltr sports saloon?

Mike

Mike,

With relatively conservative driving (mostly motorway) we've cracked 400 miles (just) a number of times but this is really running it down to the wire after the fuel light being on for some time.

The car is a 2.0 Petrol Sport 5 speed Hatch and is a car I bought for my wife. Around town with her driving, she'll fill up after about 360 miles max, she doesn't like the fuel light on for too long... :D This is a pre facelift car and i think that the face lift version has a 6 speed? not sure.

Anyhow, not bad for a 2.0 petrol, the sedan may be a bit better because of less drag. However, both not as good as the diesel...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on November 09, 2007, 12:29:31 PM
You have to be pretty conservative to get 400 as indicated by Danno ( Welcome to the forum by the way) 

I have a 2004 2.0 ltr Sport Saloon and a heavy foot. So on average I get 32 mpg. I never let my tank get to the point where the light comes on, but just recently I did a little experiment.

I filled up and then drove like a granny for the duration of the tank. After calculating this out I did 35.9 mpg and a total of 410 miles before the light came on. At which point I refulled.( I couldn't stand it any longer  :))

So the 400 mile barrier can be broken provided that 1. You dont like acceleration & 2. You never exceed 70mph.
However if this is the case then DONT BUY A SPORT MODEL  LOL .
The Zoom Zoom factor is just far too much fun to be conservative.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: markiered on November 09, 2007, 04:37:36 PM
wow 400miles on a sport with one tank wish my could do that *l*
I guess get about 25-30mpg from my mazda but not really pay notice to it, will try will try to get some more detail figures for later.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ducati - andy on November 09, 2007, 05:49:19 PM
I got 32 MPG on a recent trip down to Gatwick and back which was very pleasing.

I tend to get around 27-29 MPG on normal running around.

Andy
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Chris_UK on November 09, 2007, 11:28:31 PM
I've got a new Mazda 3 2.0 D Sport

800 miles on the clock.

Currently getting about 42mpg (400-420) Miles per tank, computer thinks i'm doing 48-49mpg. Seems to be miles out. Does anyone know a reason for why the computer is so inaccurate?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on November 09, 2007, 11:33:16 PM
I've got a new Mazda 3 2.0 D Sport

800 miles on the clock.

Currently getting about 42mpg (400-420) Miles per tank, computer thinks i'm doing 48-49mpg. Seems to be miles out. Does anyone know a reason for why the computer is so inaccurate?
??? My computer is accurate to within 1mpg since I've had it.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: neeldub on November 09, 2007, 11:35:02 PM
i filled mine on tuesday full. the trip computer then read 487 Miles with the full tank @ 12.8/100M..

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: huwdavid on November 14, 2007, 05:39:50 PM
Hmmm.

I am on my second 2.0 Petrol Sport (had a 55 now got a 57) and pretty much don't get more than 280 miles out of a full tank.

The computer reckons that equates to 29mpg.

I do mainly around town driving - so that probably explains it - but even when on motorway runs I don't tend to get more than 300 miles from a full tank.

I had hoped that with my new Sport things would improve - but if anything it is slightly worse. Had hoped the 6th gear would have made a difference - and the cruise - but it would seem not.

I can only dream of 400 miles from a tank!!!! :-\
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on November 14, 2007, 06:05:47 PM
The past 2 weeks are killing my economy, very colds start and city driving are bringing my mpg down to 31mpg for the last tank and 32mpg for the current one. And that's from a 1.6!

And yet, yesterday I drove a 1.8 civic "enthusiastically" for 120miles and couldn't get the trip meter below 38mpg  :(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: neeldub on November 14, 2007, 06:09:47 PM
for the cold morning starts, i leave the car to warm up till it idles at 900rpm, but during that time i rev it a lil bit. that way i noticed that my MPG stays the same.. try it and see what happens..
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on November 14, 2007, 07:24:33 PM
And yet, yesterday I drove a 1.8 civic "enthusiastically" for 120miles and couldn't get the trip meter below 38mpg  :(

If its the new one with the 1.8 i-vtec then its got trick valves (like BMW's valvetronic). On part throttle it fully opens the throttle and adjusts the valve timing and 'throttles' the engine that way. Resulting in less pumping loss and more mpg. Its also in a cheaper road tax bracket.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on November 14, 2007, 07:53:00 PM
yeah a new one. Can't stand the 6spd box but that engine in my car would be great.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: markiered on November 15, 2007, 02:17:02 PM
Well today got my K&N high performance air filter for my mazda and all I can say is WOW!!!

Car ran a whole lot better smoother with it and the plus side getting better mpg with it to.  On the mazda filter was getting about 26mpg around town, and did a trip to town and back with the K&N filter (round trip is about 4miles) got a nice mpg of around 29
totally worth the money around £50 for the filter and bouns part it's a lifetime filter.  Will be monitoring it more next trip on the dual carriage way to exeter and back and see how it fairs then.

Go get yourself one won't be disappointed
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on November 15, 2007, 04:23:28 PM
Well today got my K&N high performance air filter for my mazda and all I can say is WOW!!!

Car ran a whole lot better smoother with it and the plus side getting better mpg with it to.  On the mazda filter was getting about 26mpg around town, and did a trip to town and back with the K&N filter (round trip is about 4miles) got a nice mpg of around 29
totally worth the money around £50 for the filter and bouns part it's a lifetime filter.  Will be monitoring it more next trip on the dual carriage way to exeter and back and see how it fairs then.

Go get yourself one won't be disappointed

Just to let you know, there is a counter argument to K&N that in the long term they allow more dirt in which causes damage. :-X

Yes it does improve air flow but at the expense of filtration. Wet filters rely on oil to trap dirt, as the oil is doing the work that the thicker paper would do so, you need to maintain the filter. However you also need to be careful of not over oiling it and breaking the air mass meter. Not an issue in motorsport where engines get rebuilt.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: markiered on November 15, 2007, 06:04:03 PM
Well today got my K&N high performance air filter for my mazda and all I can say is WOW!!!

Car ran a whole lot better smoother with it and the plus side getting better mpg with it to.  On the mazda filter was getting about 26mpg around town, and did a trip to town and back with the K&N filter (round trip is about 4miles) got a nice mpg of around 29
totally worth the money around £50 for the filter and bouns part it's a lifetime filter.  Will be monitoring it more next trip on the dual carriage way to exeter and back and see how it fairs then.

Go get yourself one won't be disappointed

Just to let you know, there is a counter argument to K&N that in the long term they allow more dirt in which causes damage. :-X

Yes it does improve air flow but at the expense of filtration. Wet filters rely on oil to trap dirt, as the oil is doing the work that the thicker paper would do so, you need to maintain the filter. However you also need to be careful of not over oiling it and breaking the air mass meter. Not an issue in motorsport where engines get rebuilt.
Thanks for the input, yes got my filter service instruction sheet inside the box, on their website they say don't need to clean it out until you've done 50000 miles not sure how true that is, but probably clean my out every year or two, which will be well below 50000miles anyway.  So if the filter is maintained properly it's should do it's job and filter out the dirt/dust as good as the normal paper filters??
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on November 15, 2007, 06:37:52 PM
Thanks for the input, yes got my filter service instruction sheet inside the box, on their website they say don't need to clean it out until you've done 50000 miles not sure how true that is, but probably clean my out every year or two, which will be well below 50000miles anyway.  So if the filter is maintained properly it's should do it's job and filter out the dirt/dust as good as the normal paper filters??

I don't know :-X

But its the oil that is doing the some of the work. It does need maintenance where as a paper (stock) one doesn't. Perhaps half the cleaning schedule.

I know in the Scooby world where you can get approved upgrades from Prodrive (PPP) it cost a lot of money (ecu, fuel pump, exhaust) and they don't change the air box for a K&N, why don't they as its a relatively cheap mod?

There is a lot of debate on Scooby forums on which is better\safer etc.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: markiered on November 16, 2007, 10:26:46 AM
Had my little trip on the dual carriage way doing about 70mph give or take a few mph today and on the way back went thru shaldon to torquay which has a nice up hill bendy road.  Total trip was just under 39miles.  read out for fuel consumption was 11.8 litre/100mile convert that to mpg comes to 38mpg not bad if I may say so better mpg then the standard mazda filter for me and also car ran much better to.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on November 16, 2007, 04:07:16 PM
This is interesting to know. Having seen the Philipine CAI, I can't believe how mazda complicate the path of the air flow into the engine. If the K&N can improve mpg by 5% it'll pay for itself in less than a year for me.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Mica_MPS on November 20, 2007, 09:27:13 AM
The MPS continues to be surprisingly economical as a daily driver; currently averaging just under 29mpg, and managing 32mpg on a relaxed 85mph cruise (indicated). Use the turbo hard, of course, and that drops dramatically, but the rest of the time the direct injection has real economy benefits.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: kiyser_sosae on November 24, 2007, 10:25:10 PM
Yep im getting 33.mpg no problem sitting at 75 80mph
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: hussein on November 27, 2007, 08:49:20 PM
I've just finished my first tankful which I filled up with when I got the car and got 420 miles out of it.  Thats 40 litres I think.  If thats right, thats 8.8 gallons which makes 47.7mpg.  Not bad considering I hammered it somewhat on the way home from Sheffield (generally a steady 80mph cruise, erm on the autobahn of course).  There was one trip to Reading and back, but the rest was all London traffic.

I'll post back again later when I've done a few more tankfuls and see whether this is easily repeated.  Its a nice mileage, but not quite as much as I was getting out of my little Skoda 1.9 TDI.

Thats a 2005 1.6D with 23k on it.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: moboang on December 02, 2007, 10:18:03 PM
MPS doing well, currently 32mpg and thats covering 1400 miles a week! Still looking for a diesal though!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on December 02, 2007, 10:33:59 PM
MPS doing well, currently 32mpg and thats covering 1400 miles a week! Still looking for a diesal though!
That's 70,000 miles a year  :o
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: moboang on December 02, 2007, 10:37:24 PM
yep its only costs me £1000/month in petrol!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: hussein on December 03, 2007, 12:28:29 AM
That mileage in an MPS is nuts!

If you swapped that for a 2.0D Sport (141BHP @ 2000rpm, 266lb/ft - only 14lb/ft down on the MPS!  Fast relaxing car, that) and got say (conservatively) 42MPG...

1400 miles a week, thats 43.75 gallons @ 32MPG (MPS, really? I expected less. Must have a tall 6th)
1400 miles a week, thats 33.33 gallons @ 42MPG (2.0D, low estimate, Mazda says 47MPG Combined)

Say petrol & diesel are the same price, your £1000 a month comes to £760.  Saving £240 a month, £2880 a year on fuel alone.  Thats without taking into account £400 tax and the insurance on the hottest hatch there is.  Plus I reckon that mileage related depreciation on an MPS is a lot more than it is on a diesel.  People expect diesels to be high miles so its no shock.  Buyers for an MPS would definitely be more fussy.  I reckon it costs you at least a £15 a day premium to drive the MPS over a 2.0D, which is pretty shocking.

MPS is such an awesome car though!  Still, driving it a lot would kill your wallet.

Good luck with the search.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: moboang on December 07, 2007, 03:45:20 PM

1400 miles a week, thats 43.75 gallons @ 32MPG (MPS, really? I expected less. Must have a tall 6th)
1400 miles a week, thats 33.33 gallons @ 42MPG (2.0D, low estimate, Mazda says 47MPG Combined)



Good news I am now getting 34mpg with texaco excellium (spelling!), at least 160 miles are on m40.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on December 08, 2007, 02:48:04 AM
That mileage in an MPS is nuts!

If you swapped that for a 2.0D Sport (141BHP @ 2000rpm, 266lb/ft - only 14lb/ft down on the MPS!  Fast relaxing car, that) and got say (conservatively) 42MPG...

1400 miles a week, thats 43.75 gallons @ 32MPG (MPS, really? I expected less. Must have a tall 6th)
1400 miles a week, thats 33.33 gallons @ 42MPG (2.0D, low estimate, Mazda says 47MPG Combined)

Say petrol & diesel are the same price, your £1000 a month comes to £760.  Saving £240 a month, £2880 a year on fuel alone.  Thats without taking into account £400 tax and the insurance on the hottest hatch there is.  Plus I reckon that mileage related depreciation on an MPS is a lot more than it is on a diesel.  People expect diesels to be high miles so its no shock.  Buyers for an MPS would definitely be more fussy.  I reckon it costs you at least a £15 a day premium to drive the MPS over a 2.0D, which is pretty shocking.

MPS is such an awesome car though!  Still, driving it a lot would kill your wallet.

Good luck with the search.

I think its a fair estimate on MPG I get 10 less than my Golf diesel on the same route.

I agree with your post, for that kind of mileage I'd go diesel. The value of the MPS will be on the floor.

Sporty diesels can be fun but not in the same way as a petrol. Having said that, I'm talking coming from a 2.0 16v petrol to a Sports diesel - the low down torque is massive and it feels like a step up.

Perhaps coming from a MPS any diesel (except for the BMW 335d etc) would be a step down, but you'd only notice the lack of power in the top of the rev range. There's no way a diesel of sensible engine size can make that kind of BHP.

The only downside is that they are a lot more complex than petrols (ironic ehh?) and in my experience less reliable.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Mica_MPS on December 12, 2007, 12:36:36 PM
I initially thought about getting rid of the MPS when my daily commute increased from 25 miles to 80 miles a couple of months back, but it's really no gas guzzler on long journeys (6th is geared to about 26.5mph/1000rpm, which helps), and the benefits of something slower and more frugal would take a long time to realise when all the costs-to-change are accounted for. An ordinary 2.0 petrol would probably only be around 5mpg more economical (35mpg vs 30mpg).

I don't agree that the massive power disparity between the MPS and even the 2.0D would only be noticeable at the top of the rev range (the MPS has already done its best work by about 5500rpm), but there's no doubt the 2.0D would be much the better tool for a 400 mile/week commute. Hire cars aside, I don't and never will do diesel though! 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on December 12, 2007, 12:52:04 PM
I initially thought about getting rid of the MPS when my daily commute increased from 25 miles to 80 miles a couple of months back, but it's really no gas guzzler on long journeys (6th is geared to about 26.5mph/1000rpm, which helps), and the benefits of something slower and more frugal would take a long time to realise when all the costs-to-change are accounted for. An ordinary 2.0 petrol would probably only be around 5mpg more economical (35mpg vs 30mpg).

I don't agree that the massive power disparity between the MPS and even the 2.0D would only be noticeable at the top of the rev range (the MPS has already done its best work by about 5500rpm), but there's no doubt the 2.0D would be much the better tool for a 400 mile/week commute. Hire cars aside, I don't and never will do diesel though! 


I think u'd like a diesel if you drove a 330cd. Autocar rated it better than the 330ci, but ironically its not that economical.

True if you drive it off boost then its more like a 2.3 n\a. But driving a diesel off boost is also like a SDi, so its all relative. Things like your car's direct injection should help.

The killer cost at the moment is road fund licence. My mates 330ci is in the same tax bracket as my 2.0 Sport. His must be in the middle and mine is 2 away from the lower bracket ???

Incedentially for the 1.4 and 1.6 for the face lifted version they dropped enough to move these engines down a bracket.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: underworld on December 14, 2007, 07:44:37 PM
 filled up twice and both times, I got about 300 ish miles both times... i did about 60 miles at 80 - 100 mph both times and the rest was either 60 on the motorway or town driving.....

It would possibly be more than 350 miles if i didnt floor it on the mway...

I filled up today and goin to blackpool tomorrow, ill see how it goes.. hoping to reach there and still have some fuel left in t ;D ;D ;Dhe tank
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mazda3-mike on December 15, 2007, 12:24:50 PM
....hey underworld i see you are a 'bow wing' techie? where bouts you working.....

I'm at Stansted?

btw my 1.4 is giving me 410 to 420 miles per tank?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: the_rangdo on December 15, 2007, 02:00:28 PM
Getting 46mpg average on my 1.6D TS2, that's pure town driving.   :)

Got a trip down to London next week, that'll be my first decent m-way trip and I'm intrigued to see what I can squeeze out of a tank so I'm going to try and be good  ;)

My 323 would do 28 round town, 36 at best on a m-way so things are already better.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: underworld on December 16, 2007, 07:17:56 PM
....hey underworld i see you are a 'bow wing' techie? where bouts you working.....

I'm at Stansted?

btw my 1.4 is giving me 410 to 420 miles per tank?

loll not what u think  ;D ;D ;D I work in essex..  410?? thats 100 miles more.. i did 310 miles today from a full tank and there's just above 1/4 of a tank left... only motorway driving...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stu17 on December 22, 2007, 12:45:44 PM
The following figures are what i'm currently getting. All my driving is usualy about the houses but during test had about 60 motorway miles which was on cruise at 80mph. According to computer my average speed is 19mph  :-[. In my defence the wife never speeds and very rarely gets into 4th gear.

new 2007 2.0 sport hatchback , tank topped up run for 247 miles and topped up again 26.56mpg. computer was saying 27.2 mpg. :(
My old 2005 2.0 sport used to get 29.7 mpg.

i'm with Mica don't want to go the deisel route but who knows with the price of fuel these days. Wish i had not checked now.

Ps don't tell the wife or she may want smaller engine
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on December 22, 2007, 02:53:45 PM
The following figures are what i'm currently getting. All my driving is usualy about the houses but during test had about 60 motorway miles which was on cruise at 80mph. According to computer my average speed is 19mph  :-[. In my defence the wife never speeds and very rarely gets into 4th gear.

new 2007 2.0 sport hatchback , tank topped up run for 247 miles and topped up again 26.56mpg. computer was saying 27.2 mpg. :(
My old 2005 2.0 sport used to get 29.7 mpg.

i'm with Mica don't want to go the deisel route but who knows with the price of fuel these days. Wish i had not checked now.

Ps don't tell the wife or she may want smaller engine

Hi Stu

Interesting that your getting less with your '07 - as its meant to about 1.5 mpg better than the pre-facelifted one. Its a shame they didn't drop the Co2 a few more so it would drop down a tax bracket we're in the same band as a 330ci BMW >:(

I get more MPG with BP regular then I do with Shell regular. I think it's cos generally speaking BP tends to burn better at low speed the opposite to Shell. Which is more useful in traffic.

Also I've got a bit of a flat spot at 1,900 rpm (light throttle in 4th). Its much worse with Shell. Have you noticed one?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stu17 on December 22, 2007, 06:00:29 PM
hi sk44tec
i've only done 446 miles so far with the new one (still waiting to open it up) i will check for flat spot.  I may get more once the engine eases a little. Only using supermarket petrol as the the BP stuff is 4p/litre dearer. Do you think the gearbox could be making the difference.

Stu
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on December 22, 2007, 06:13:41 PM
hi sk44tec
i've only done 446 miles so far with the new one (still waiting to open it up) i will check for flat spot.  I may get more once the engine eases a little. Only using supermarket petrol as the the BP stuff is 4p/litre dearer. Do you think the gearbox could be making the difference.

Stu

The 6-spd should help economy shouldn't it?

Also the bad weather at the moment won't help, was the 29.7 in this type of weather or over a longer period?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stu17 on December 22, 2007, 06:25:17 PM
the 29.7 was basically over the 2 1/2 years i had the car. re the gearbox i was thinking along the lines of how many revs for 30mph in fourth. i think its about 2000 with the new 6 speed don't know what it was in old car.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on December 22, 2007, 10:18:14 PM
hi sk44tec
i've only done 446 miles so far with the new one (still waiting to open it up) i will check for flat spot.  I may get more once the engine eases a little. Only using supermarket petrol as the the BP stuff is 4p/litre dearer. Do you think the gearbox could be making the difference.

Stu


I forgot about that. The variable valve timing should help, I don't know if the gearbox is more efficient or not. If the engine is new then you won't be getting the full economy or power. The thread below details the updates to the 3 facelift (including one I just noticed I missed...doh!).

http://www.mazda3forums.co.uk/index.php?topic=152.0

As for petrol I've heard so much about it I don't know what to think! Logon to www.petrolprices.com and you might surprise yourself. I've found a shell garage selling the same price as Asda :o

My car was on 31.8 its dropped down to 31.1 'cos of the cold. I don't do much town driving, mainly A or B roads.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stu17 on December 23, 2007, 12:46:41 PM
the cold weather up here in scotland won't help, especially as i sometimes go start the car and let it defrost windows for 5 mins while i have a cup of tea. regardless of mpg i still love the car and it stays.wonder if i would get much less with the MPS. (sorry dreaming again)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on December 23, 2007, 02:40:58 PM
the cold weather up here in scotland won't help, especially as i sometimes go start the car and let it defrost windows for 5 mins while i have a cup of tea. regardless of mpg i still love the car and it stays.wonder if i would get much less with the MPS. (sorry dreaming again)

Yeah the cold has a big effect on cars, not always bad though. With my turbo diesel the once warmed up the colder air made more charge, so perhaps all turbo cars might benefit from the cold. That said the flip side was a drop in power in the summer months ::)

How many miles has your car done, it sounds likes its quite new? The book value is still 5 mpg above a Civic Type R :). But its way behind Honda's 1.8 Type S :(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stu17 on December 23, 2007, 03:55:18 PM
just under 500 miles. even in this weather sometimes have ac on to stop windows steaming up. if its been raining and your jacket etc are wet windows steam up quite bad.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on December 23, 2007, 04:00:59 PM
just under 500 miles. even in this weather sometimes have ac on to stop windows steaming up. if its been raining and your jacket etc are wet windows steam up quite bad.

Your 3 is brand spanking new ;) You economy will go way higher, after 5,000 or so. Keep an eye on the oil, mine doesn't drink any but I only had mine from 6,000.

By the time summer rolls in u'll be able to enjoy your run in Mazda!

Leave the ac on auto, u'll notice that if the temp difference is not so great it will show 'ac\eco' - which means it duty cycles the ac compressor. If the temp difference is great (ie summer) and it needs to cool then the display will show 'ac' - for full air conditioning.

Also like most cars the AC compressor is deactivated below a certain temperature. On my Golf it was about 5 degrees, I don't remember what temp the mazda one is.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stu17 on December 23, 2007, 04:24:58 PM
it was to good a deal to pass up. pre registered by garage, got it with 16 miles on clock for £14,600 on interest free credit ;D
the garage 2 miles from house wanted £16,200 for same car. Only diff is officially i'm not first owner, but i can live with that.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on December 23, 2007, 06:44:30 PM
it was to good a deal to pass up. pre registered by garage, got it with 16 miles on clock for £14,600 on interest free credit ;D
the garage 2 miles from house wanted £16,200 for same car. Only diff is officially i'm not first owner, but i can live with that.

That does sound like a good deal actually! That carbon grey does look good, I didn't really want another black car but in the end the price decided it for me.

I've doubled the miles in it and I can certainly see myself owning another Mazda in the future!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: winner6 on December 23, 2007, 07:54:15 PM
Danno,

what miles do you get from a full tank, on average, please as we ar looking to get the 2 ltr sports saloon?

Mike

i get 260 to 280 miles on a mazda saloon 2l ts2

which isnt very much
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: underworld on December 23, 2007, 08:05:45 PM
Danno,

what miles do you get from a full tank, on average, please as we ar looking to get the 2 ltr sports saloon?

Mike

i get 260 to 280 miles on a mazda saloon 2l ts2

which isnt very much


how come i get only 20 miles more on a 1.4???? HELPPPPPPPPPP
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stu17 on December 23, 2007, 08:37:30 PM
cheers winner and underworld  :o feel better now :) :) :) :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: the_rangdo on December 30, 2007, 06:31:03 PM
According to the trip computer 60.4mpg round trip to London (total 430 miles)  ;D

That includes 25 minutes sat on Thelwall viaduct as an accident had just happened minutes before we got there, slow for miles down the M6 with signs saying accident then congestion (no apparent cause), M1 roadworks and stuck for 30 mins on Marylebone Road 10 yards from the turn left we needed to make but couldn't move  >:(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Coulda on January 04, 2008, 09:57:57 AM
All combustion engines get a power boost due to cold air. Just a turbo multiplies the affect. Its because the colder the air is the more dense the air is.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: the_rangdo on January 04, 2008, 10:06:37 AM
I was on a mission to see how close to the quoted extra urban figure of 68.9 I could get.  Those hold-ups ruined the master plan  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: littleg on January 04, 2008, 06:38:55 PM
Car: 3 MPS Aero
Reg: 57
Mileage: 3800
Normal Driving: Commute = 35 miles each way - 10 miles rush hour urban, 25 miles rush hour motorway, other longer trips 50 to 100 miles at weekends

From my trip computer (seems pretty accurate):

Best MPG: 32.1
Worst MPG: 29

...I've been using BP ultimate.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on January 20, 2008, 07:22:12 PM
Interesting reading right stuff. I'm surprised you got no added punch (or less lag) with V power ??? ??? My Golf had much less lag but was much louder too.

I'm guessing the 1.6d has a particulate trap so no smoke out the back. My Golf diesel didn't and I got less smoke on BP Ultimate vs BP regular. This is important as the more smoke the more the internals get covered in sticky oil, this can affect the EGR valve.

I had a peek at my EGR valve at about 44K and it was very clean, what happens is that carbon builds up reducing the air flow. I ran BP ultimate from 17K to 44K till I sold it.

My advice is not to use supermarket fuels, you can't see the smoke out of the back like I could. I'd stick to Shell or BP.

A more pocket friendly approach is try millers 'diesel power 4' it raises the cetane rating by 4. Its about 8 quid and should last ages. Having said that it makes you look even more stingy at the fuel forecourt :P
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: kenco on January 20, 2008, 10:27:28 PM
Slightly off topic but on the same line my 2.0 sport is in L/100mi is it possible to change this to read MPG?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ducati - andy on January 20, 2008, 10:46:10 PM
Car: 3 MPS Aero
Reg: 57
Mileage: 3800
Normal Driving: Commute = 35 miles each way - 10 miles rush hour urban, 25 miles rush hour motorway, other longer trips 50 to 100 miles at weekends

From my trip computer (seems pretty accurate):

Best MPG: 32.1
Worst MPG: 29

...I've been using BP ultimate.

Sheesh... my last two tank fulls of V-power have been 25mpg, but I dont like to loose at the traffic lights  :D

I tried Texaco super this time and although no more mpg the car is so much more responsive, I blitzed an Orange Focus ST tonight   ;D

Andy
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on January 21, 2008, 07:25:39 PM
Thanks for the comments  ;) sk4tec, 

Very interested in the comment on increasing the cetane rating and your other info.
I have just had a read up on cetane ratinings on the web.

 ??? Does anyone know if Fuel suppliers have to declare the cetane rating of their diesel fuel for premium and the standard diesel fuel? there is obviously a UK minimum standard but it would be interesting to see a comparison of the major suppliers, must be one on the web somewhere. I cant say I have seen cetane ratings at the at the pump.

I might give this millers diesel power 4 a try but I think I'll try the BP ultimate first.
Finally, if the premium fuel is about 4  higher than the ordinary stuff anyway and then you add the millers would it not burn too hot?

 >:D


Sounds like you've figured it out by the end of writing your post ;)

Yes there is an agreed Cetane number for standard petrol...whoopsss I mean Diesel. Generally the premium fuel is about + 4 (don't know about V power). You should see Cetane on the pump when you buy.

I've read people use BP Ultimate and millers +4. But I wouldn't recommend it, what you are doing is increasing compression.

Comparing BP Ultimate and BP std with Millers diesel power plus (the formulation before millers 4 power) produced almost identical results to BP Ultimate. Much more wallet friendly!

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on January 27, 2008, 04:19:00 PM
Right stuff,

was in H'fords took some snaps of diesel port sport ;D ;D

(http://i11.photobucket.com/albums/a185/sk4tec/DSC00531.jpg)

(http://i11.photobucket.com/albums/a185/sk4tec/DSC00532.jpg)

I used the older mix which was called 'Diesel power plus' and was very happy, power 4 I would guess gives more of a kick! The measuring thing is really easy too, loosen the cap and squeeze the bottle the correct amount goes into the top and poor in, simple - job done!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: MisterG on January 27, 2008, 05:29:37 PM
Just somethin to help people work out their economy.... check out

http://www.spritmonitor.de/en/ (http://www.spritmonitor.de/en/)

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on January 27, 2008, 07:08:13 PM
Just somethin to help people work out their economy.... check out

http://www.spritmonitor.de/en/ (http://www.spritmonitor.de/en/)


I don't see you using it  :P

Unfortunately I haven't updated all my data so I'm about 2 mpg down. :( I'm sad on so many levels.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: markiered on January 27, 2008, 07:35:56 PM
Did a trip to Plymouth today about 65miles round trip got just under 40mpg  :) 

sk4tec does those mix work??  saw fifth gear program a while back where they did a review on a few different brands that claim to increase your mpg/and power, but they found that it didn't and in most case reduce power to the engine by couple % mind you these was done on Petrol cars.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on January 27, 2008, 08:02:40 PM
Did a trip to Plymouth today about 65miles round trip got just under 40mpg  :) 

sk4tec does those mix work??  saw fifth gear program a while back where they did a review on a few different brands that claim to increase your mpg/and power, but they found that it didn't and in most case reduce power to the engine by couple % mind you these was done on Petrol cars.

Valid point, I saw that too. I was more annoyed for them spreading incorrect information. They used a Rover 200 petrol, they should have had some performance models too (CTR, MPS, 330Ci, Golf GTi). The Evo mag test was much better. The Golf made around 15 bhp on the best fuel.

With regards to your question the beauty of compression ignition (ie diesel, turbo diesel). Is that there is no ignition timing as such, the engine squashes the fuel till it goes bang. This stuff raises the compression - so on a diesel its all good. A side effect is more diesel rattle.

On petrols, more compression is good, but its spark ignition so too much compression causes pre igniting and the ecu might 'back' the engine a bit. I think this is what my 2.0 petrol does, on prem fuel it reaches its knock limit and winds the engine back, hence IMO it makes less power
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: MisterG on January 27, 2008, 09:11:39 PM
Just somethin to help people work out their economy.... check out

http://www.spritmonitor.de/en/ (http://www.spritmonitor.de/en/)


I don't see you using it  :P

Unfortunately I haven't updated all my data so I'm about 2 mpg down. :( I'm sad on so many levels.

I have started using it, but as yet have no data to put in  :)

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: The Bayonne Express on January 27, 2008, 09:39:20 PM

Valid point, I saw that too. I was more annoyed for them spreading incorrect information. They used a Rover 200 petrol, they should have had some performance models too (CTR, MPS, 330Ci, Golf GTi). The Evo mag test was much better. The Golf made around 15 bhp on the best fuel.

With regards to your question the beauty of compression ignition (ie diesel, turbo diesel). Is that there is no ignition timing as such, the engine squashes the fuel till it goes bang. This stuff raises the compression - so on a diesel its all good. A side effect is more diesel rattle.

On petrols, more compression is good, but its spark ignition so too much compression causes pre igniting and the ecu might 'back' the engine a bit. I think this is what my 2.0 petrol does, on prem fuel it reaches its knock limit and winds the engine back, hence IMO it makes less power

How can a fuel additive raise the compression of an engine ? Octane rating for petrol indicates the resistance of the fuel to pre-ignition, cetane rating for diesel indicates the 'willingness' of the fuel to 'ignite' - which of course is exactly what you want in a diesel. I can't see that increased cetane rating would have any negative effect, but I'm willing to be corrected. 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on January 27, 2008, 10:18:29 PM

Valid point, I saw that too. I was more annoyed for them spreading incorrect information. They used a Rover 200 petrol, they should have had some performance models too (CTR, MPS, 330Ci, Golf GTi). The Evo mag test was much better. The Golf made around 15 bhp on the best fuel.

With regards to your question the beauty of compression ignition (ie diesel, turbo diesel). Is that there is no ignition timing as such, the engine squashes the fuel till it goes bang. This stuff raises the compression - so on a diesel its all good. A side effect is more diesel rattle.

On petrols, more compression is good, but its spark ignition so too much compression causes pre igniting and the ecu might 'back' the engine a bit. I think this is what my 2.0 petrol does, on prem fuel it reaches its knock limit and winds the engine back, hence IMO it makes less power

How can a fuel additive raise the compression of an engine ? Octane rating for petrol indicates the resistance of the fuel to pre-ignition, cetane rating for diesel indicates the 'willingness' of the fuel to 'ignite' - which of course is exactly what you want in a diesel. I can't see that increased cetane rating would have any negative effect, but I'm willing to be corrected. 

I'm not talking about static compression of the engine, thats fixed of course. But the compression ratio is worked out on how much the engine can squeeze the fuel before it uses it, the more it squeezes before it uses it the more efficiency and power. However, the fuel will combust more easily and earlier on in the compression cycle and so the engine doesn't need to work as hard for the same 'bang'.

The super diesel fuel is more combustible than regular fuel, it will ignite sooner than the regular fuel. I'm not saying that it will transform a 1.6 d into a 330d, but its more subtle - less off boost lag and perhaps a better top end. The kind of difference you get when your cars been serviced.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bayles111 on January 28, 2008, 07:30:21 PM
Ive Had my MPS AERO 4 weeks now and cant seem to get above 23mpg. I must say ive not been on a run of any distance with it yet, and only done 800 miles. So it may improve.... Its a bit heavy on the pocket especialy being inbetween jobs at the moment. >:(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Mica_MPS on January 30, 2008, 11:42:50 AM
Ive Had my MPS AERO 4 weeks now and cant seem to get above 23mpg. I must say ive not been on a run of any distance with it yet, and only done 800 miles. So it may improve.... Its a bit heavy on the pocket especialy being inbetween jobs at the moment. >:(


Don't worry; you'll see an improvement of about 3-4mpg over the first 5k miles. 30mpg+ is easily achievable on a long run, and my current average is 29mpg after 18k. Not bad at all for the performance, I reckon...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: baldbloke on January 30, 2008, 09:06:07 PM
2.0 Diesel Sport.

I usually get around 47MPG. My daily run to work is about 5 miles of lanes, 8 of motorway and a couple sitting in tow traffic.

My wife gets 53MPG on the same run but she has a lighter right foot!

Ian.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: lsw on January 31, 2008, 08:22:02 AM
Ive Had my MPS AERO 4 weeks now and cant seem to get above 23mpg. I must say ive not been on a run of any distance with it yet, and only done 800 miles. So it may improve.... Its a bit heavy on the pocket especialy being inbetween jobs at the moment. >:(

hi guys

did a journey down to suffolk,a mixture of motorways, A+ B roads based on a full tank of 99 octane fuel got a overall mileage of 290 miles from the full tank.

hope this helps people  :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Scratch Senior on February 13, 2008, 03:38:42 PM
 ::)Hi there,

I have a question about fuel economy...as i feel i'm not getting much! My car is a 57 reg Mazda 3 TS Diesel. I've had it for about 3.5 months now and it is doing about 6,300 miles. Firstly, it says in the spec book that the capacity of the tank is 55 litres...but when i fill up when the fuel light is on (i know..i like living dangerously) it takes about 42.5 litres. So i did the calculation for mpg using 45 litres, giving about 9.89 gallons, and I get about 450 miles on a full tank. So that works out to be roughly 45mpg. Now according to the spec book i should be getting on average about 58.9 mpg.....has anyone eperienced this? Am i calculating it wrong?

Cheers

Scratch
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: neeldub on February 13, 2008, 04:00:40 PM
if you mention this to your dealer, they may be able to hook up their diagnostic machine to the car and look up the MPG readings etc..
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on February 13, 2008, 04:14:07 PM
::)Hi there,

I have a question about fuel economy...as i feel i'm not getting much! My car is a 57 reg Mazda 3 TS Diesel. I've had it for about 3.5 months now and it is doing about 6,300 miles. Firstly, it says in the spec book that the capacity of the tank is 55 litres...but when i fill up when the fuel light is on (i know..i like living dangerously) it takes about 42.5 litres. So i did the calculation for mpg using 45 litres, giving about 9.89 gallons, and I get about 450 miles on a full tank. So that works out to be roughly 45mpg. Now according to the spec book i should be getting on average about 58.9 mpg.....has anyone eperienced this? Am i calculating it wrong?

Cheers

Scratch

Scratch - Just a general comment, assuming the total mileage is ~6,300 miles. From my experience diesel's only loosen up about 20-25,000 miles :o :o :o.

Also, when taking out on a longer drive - don't 'granny it' all the time, its easy not to drive a diesel hard and use the low down torque. But it will help running it in. On a longer drive give it some right foot and some revs ;D

Ofcourse don't do this at the start or end of your journey (sure you know this :-X).

As for my car well I'm gonna try some 'STP complete fuel cleaner' its a bit pricey but hopefully it will clean up the engine. It might ofcouse be a waste of money on my car :'( :'(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stonyb on February 13, 2008, 06:03:34 PM
Scratch - I also have 1.6d - now done 9,500 mls, and have been getting a consistent 51-52 mpg over the time I have had it (7,000).  I am quite light footed and I would doubt if Mazda's 58.9 is achievable in practice  - and the same goes for any other manufacturers quoted figures.

As for your fuel gauge  - sounds to me as if it's not reading right.  With mine I usually fill up when gauge is down to the third (of the 20) mark, and it will then take about 43litres.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mazdazoom on February 16, 2008, 04:25:32 PM
This may sound crazy but here goes. for as long as i can remember ive always filled up at the local asda station (always the best price about here) until recent when ive used a few tanks of bp fuel. From what ive worked out  got around 35mpg with the asda brand and average of around 41 with bp. I havent driven the car any different so can there really be such a difference in the fuels. Id have though they would have all came out of the grangemouth refinery anyway so should be the same stuff.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Splodge on February 16, 2008, 04:41:45 PM
I bought my car 4 days ago.  The 3 MPS Aero.  Wow it moves!!  I filled the tank with Shell V Power (cost £50.50).  I have driven on Motorway between 70 - 80mph the whole journey with a couple of overtakes i wont mention the speed during these overtakes.  I drove back along the same route and have so far done 195 miles.  My petrol gauge is halfway and my trip computer says i have 180 miles remaining.  I dont know how but i got my average MPG on the trip computer to read 35.1!!!!!!!!!!!   Considering this is supposed to be thirsty it is doing better than my MX5 for fuel!!  I will let you know when i need to fill up again but if the trip computer is right which it so far has been thats a whopping 375 miles from a tank.  for the 3 MPS that is astounding.  The car has done only 4000 miles and is not even fully broken in yet so im hoping this will increase!!!!   I will experiment with different fuels and let you know but V Power seems to be her prefferred tipple!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on February 16, 2008, 05:01:04 PM
This may sound crazy but here goes. for as long as i can remember ive always filled up at the local asda station (always the best price about here) until recent when ive used a few tanks of bp fuel. From what ive worked out  got around 35mpg with the asda brand and average of around 41 with bp. I havent driven the car any different so can there really be such a difference in the fuels. Id have though they would have all came out of the grangemouth refinery anyway so should be the same stuff.

Your right petrol does come from the same refineries but BP or Shell will add their own 'packages'.

Generally speaking BP tend to make more low down torque than Shell. Shell makes more top end power. I use www.petrolprices.com it really helps identify expensive locations. In my area its the A roads which hike up the prices and the newer stations. I've found a shell which is the same price as Asda (even though I prefer BP).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: The Bun-yip on April 30, 2008, 07:32:45 PM
In a TS 1.6D, 56 reg, only now up to 10,000 miles - so still "running in" for a diesel.

K&N panel filter. Supermarket Diesel adding Millers Diesel Power Sport 4 for 4 out of the 5 fills on this trip.

A 1,501 mile round UK trip mostly Motorway cruising at 70 mph (Indic8tor GPS not speedometer. I guess  I am not the only one who does not need any more "points")

Avg MPG 50.69
Avg Miles per tank 375.25

At today's prices that makes me one happy oil burner.  ;D

Until I can find someone offering a low cost conversion to blend 20% liquid LPG with the Diesel for even better consumption that will do me very well.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on May 01, 2008, 01:02:55 PM
Same here, new 200mls 23mpg aroun town but long trip to Duxford, 35mpg @ 80 -100mph most of way
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mpschris on June 04, 2008, 04:17:56 PM
Just back from a 210 mile round trip dunoon (west coast of Scotland). The mps has impressed me more than i could have imagined. Covering about 210 miles an the tank is still not even on the half yet. Average fuel consumption of just over 40mpg. No motorways or dual carriageways here. All on windy A and B roads. Drove fairly sensibly and when i did catch slower traffic i was not long in getting past.

Wow! what a car.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stuno1 on June 04, 2008, 04:38:54 PM
40mpg!!!!!! Really....thats crazy, you sure you have a MPS and not a Diesel 1.6 with MPS badges  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: allanpug on June 04, 2008, 05:01:15 PM
My petrol gauge is halfway and my trip computer says i have 180 miles remaining.  I dont know how but i got my average MPG on the trip computer to read 35.1!!!!!!!!!!!   

do all trip counters do this   as i never knoticed this   if so   how do you get to work
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on June 04, 2008, 05:33:41 PM
My petrol gauge is halfway and my trip computer says i have 180 miles remaining.  I dont know how but i got my average MPG on the trip computer to read 35.1!!!!!!!!!!!   

do all trip counters do this   as i never knoticed this   if so   how do you get to work
AFAIK the proper trip computer is dependent on having a 6 disc changer. You use the 2 buttons under the clock to access it.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: allanpug on June 05, 2008, 12:07:15 AM
My petrol gauge is halfway and my trip computer says i have 180 miles remaining.  I dont know how but i got my average MPG on the trip computer to read 35.1!!!!!!!!!!!   

do all trip counters do this   as i never knoticed this   if so   how do you get to work
AFAIK the proper trip computer is dependent on having a 6 disc changer. You use the 2 buttons under the clock to access it.

chers......i have the in dash 6 cd player.   ill look and see
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on June 05, 2008, 08:31:53 AM
My petrol gauge is halfway and my trip computer says i have 180 miles remaining.  I dont know how but i got my average MPG on the trip computer to read 35.1!!!!!!!!!!!   

do all trip counters do this   as i never knoticed this   if so   how do you get to work
AFAIK the proper trip computer is dependent on having a 6 disc changer. You use the 2 buttons under the clock to access it.

chers......i have the in dash 6 cd player.   ill look and see

If you keep the info button pressed in it will toggle between the functions; can't remember exactly however mpg average/ mpg current/ miles to go till empty (treat with some cynicism as you will run out at most inopportune time)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on June 05, 2008, 11:42:24 AM
My petrol gauge is halfway and my trip computer says i have 180 miles remaining.  I dont know how but i got my average MPG on the trip computer to read 35.1!!!!!!!!!!!   

do all trip counters do this   as i never knoticed this   if so   how do you get to work

First of all Hi & welcome to the forum, glad you are enjoying your 3. In answer to your question  the Trip Computer on the Sport model has 4 functions and at each press of the info button displays the following.
1.Current Fuel Economy  ( Badly named,  actually shows Current Consumption )
2.Average Fuel Economy  ( As above )
3.Remaining distance you can travel on the fuel you still have.
4.The vehicle average speed.

There is a lot of displeasure about items 1 & 2 because on models up to 2006 it was calibrated in L/100km which is not very helpful to us Brits. However I believe that this was rectified and that new models including the MPS now read MPG.

1. This will give you some indication of how "heavy footed" you are being and shows how much fuel you are using based on accelerator settings vs road speed. If you select this option and then vary your speed you can actually see the read out changing as the computer calculates the result.   mine always seems to be extremely high.    ;D

2. As above but based on figures calculated since connection to battery or reset.

The remaining distance (3)  is based on the speed you are doing vs the amount of fuel left in the tank and uses data from (1)

The vehicle average speed (4) seems to be a bit erratic. I think the trouble lies in that it calculates based on the distance and time travelled since connecting the battery or resetting the data the same as item (2). This obviously includes static time which subsequently reduces the average. The average speed is recalculated every 10 secs.

To reset the data press & hold the info button for more than 1 sec. It will reset.

Hope this helps.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on June 05, 2008, 12:35:34 PM


1. This will give you some indication of how "heavy footed" you are being and shows how much fuel you are using based on accelerator settings vs road speed. If you select this option and then vary your speed you can actually see the read out changing as the computer calculates the result.   mine always seems to be extremely high.    ;D


  ............  too many Seat Leons Graham  ??  .........   ;D ;D ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on June 05, 2008, 01:10:12 PM
(http://i79.photobucket.com/albums/j124/willpower128/Emos/emot86.gif)............  Whatever !
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on June 13, 2008, 09:29:55 PM
I think the 2.0 Sport does quite well on the government cycle compared to Golf 2.0 FSi:

3 2.0 Sport

    * Combined 35.8 mpg
    * CO2 emissions 189 g/km

http://www.autocar.co.uk/CarReviews/FirstDrives/Mazda-3-2.0-Sport-6sp/222201/

Golf 2.0 FSi

    * Combined 36.2 mpg
    * CO2 emissions 187 g/km

http://www.autocar.co.uk/CarReviews/FirstDrives/Volkswagen-Golf-2.0-FSI-GT/204331/

Its surprising that the Golf isn't a lot more efficient than the 3 2.0. Mazda use trick PAS which is 'on demand' (lol much like BMW are doing with their efficient dynamics). But of course VW drivers need to use high octane fuel for the engine to run in Stratified mode which costs more. My rather un-scientific thinking is that the engine is very quiet at idle, less noise means friction :-\ (reading a few AutoExpress reviews it was quite a few db's quieter than the Astra they tested)

So on paper the 3 2.0 is an efficient engine. That said, what about the MPS, yes its a big engine but its even got the advantage of direct injection. How come its C02 is sky high??? Its CO2 is on par with a BMW 3.0 X3 :o

I couldn't find what to compare the MPS to as there isn't an engine which competes with it.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Coulda on June 15, 2008, 12:04:34 AM
Turbo and DISI cause the engine to move alot of fuel and alot of air...means the CO2 is higher...that little 2.3 is putting down power that v8's do...which means its probably moving the same amount of air v8's do. Honestly you cant compaire a 2.3 turbo to a 3.0 naturally aspirated engine.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on June 15, 2008, 10:56:42 AM
It seems the harder I drive it the more mpg I get   ???
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on June 15, 2008, 05:34:23 PM
It seems the harder I drive it the more mpg I get   ???

This was some research to show that you can get better economy by accelerating harder (ok... not full throttle and red-line) than gentle acceleration upto a cruise.

I tend to work my car to the peak torque which is 4K on mine.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on June 15, 2008, 07:16:38 PM
Since I changed my filter, mine has been getting better and better. Done a 300 mile round trip this weekend, averaged 65 mph+ and its currently showing 46.5 mpg. And thats really babied up to speed - changing up at about 3k rpm, way below peak torque.

Quite a bit of "downhill assistance" on the M62/A1M  ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mhc747 on June 16, 2008, 10:12:14 PM
Got a 2.0 D sport, Do mostly motorway driving (75-80mph) with some whizzing around town etc too and getting a healthy 47-52mpg. Best thing ive brought for a long time despite deisel price being high, still better off than if i had a petrol car :).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mhc747 on July 16, 2008, 05:36:49 PM
Just wanted some advise, Ive had my 2.0D sport for over 2 months now and am a little concerned. When i first got it the trip computer was saying that i was getting 47.1+mpg, this is mainly motorway driving (75-80mph) and urban driving. However recently doing the same type of driving its gone down to 37-43mpg. Can anyone tell me if there is something wrong with my engine as it seems to be drinking more than usual.
thanks. ???
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on July 16, 2008, 05:58:40 PM
Don't trust the sensors in the car. Best way to record absolutely accurate consumption is to fill to the brim ( pump stops automatically ). Then run the car as you normally do and fill up again when about 1/2 empty. From the mileage you do on full to half you can work out the actual consumption. it is always accurate; used to do it all time on previous car ( 10 years ) and never failed.
Meters are OK but need calibrating and are not infallible.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Coulda on July 16, 2008, 06:59:23 PM
Do the math yourself...damned computer is probably way off.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on July 16, 2008, 08:22:56 PM
Whilst I can see the point of the above posts, its still down on what it used to be (regardless of how accurate it is).

There are a few things that come to mind. Your car is a sport and will have climate. Assuming you have it on auto, as the weather is warmer it will be on full on mode more often rather than the 'ac\eco'. The ac duty cycles in auto mode. However, this would only account for 1-2 mpg.

Does the car feel slower? (All being mechanically sound\same fuel) I would say its just the heat affecting how much charge the turbo gets. My Golf TDi had a inter cooler (does the 3???) which is meant to reduce the difference of boost from cold to hot days. However, I did still feel a difference. Certainly the car did feel slower and the mpg was reduced in summer.

Keep an eye on it when the weather cools off. Conversely, my TDi was very peppy in winter with the nice cold air!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on July 16, 2008, 11:01:11 PM
Whilst I can see the point of the above posts, its still down on what it used to be (regardless of how accurate it is).

There are a few things that come to mind. Your car is a sport and will have climate. Assuming you have it on auto, as the weather is warmer it will be on full on mode more often rather than the 'ac\eco'. The ac duty cycles in auto mode. However, this would only account for 1-2 mpg.

Does the car feel slower? (All being mechanically sound\same fuel) I would say its just the heat affecting how much charge the turbo gets. My Golf TDi had a inter cooler (does the 3???) which is meant to reduce the difference of boost from cold to hot days. However, I did still feel a difference. Certainly the car did feel slower and the mpg was reduced in summer.

Keep an eye on it when the weather cools off. Conversely, my TDi was very peppy in winter with the nice cold air!



lower temperature more dense air therefore more oxygen in same volume + higher energy ouput more power . effectively like an intercooler
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: heypresto on July 17, 2008, 09:43:49 AM
Don't trust the sensors in the car. Best way to record absolutely accurate consumption is to fill to the brim ( pump stops automatically ). Then run the car as you normally do and fill up again when about 1/2 empty. From the mileage you do on full to half you can work out the actual consumption.

You could also try http://www.spritmonitor.de/en/

Only on the second fill of mine, but it will be interesting to see how well this works.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: samm on July 17, 2008, 08:05:51 PM
We've got a 2.0D sport and the economy is ******!  Very disappointed by it compared to previous cars
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on July 17, 2008, 08:22:48 PM
We've got a 2.0D sport and the economy is ******!  Very disappointed by it compared to previous cars

Thought this model gave about 45mpg average ?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on July 17, 2008, 09:17:16 PM
We've got a 2.0D sport and the economy is ******!  Very disappointed by it compared to previous cars

Thought this model gave about 45mpg average ?

If your comparing to VAG PD engine cars, common rail won't be as efficient. The pressure of the injectors is way less.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mazda3-mike on July 17, 2008, 09:39:57 PM
anyone with the 1.6 diesel engine....! what sort of economy on that one....!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: scwilson on July 25, 2008, 10:49:07 AM
I have the 1.6D and get on average 55mpg around town and upto 70 on a run.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: fatmarl on August 01, 2008, 09:28:49 PM
My 1.6D TS2 saloon averages 55mpg. I fill to the brim, reset the trip meter and when it's empty fill to the brim again. Convert litres to gallons (divide number of litres by 4.546) and divide in to the number of miles.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: kerrbryan on August 12, 2008, 01:21:19 PM
Just bought a 2.0 d sport in white. Cant wait to get it!!

Previous cars being ASTRA SRi 1.9 CDTi 150 with XP pack (averaged 44-49 MPG over a tank)
before that MK1 SEAT LEON 1.9 TDi 150 FR (averaged 46-52 MPG over a tank & best car i have ever owned!)

the rest were petrols so i wont include. But these two were driving the same routes/styles etc.
It will be good to compare the Mazda 3, firstly I am not expecting it to be as quick as the other two so probably expecting slighlty better fuel consumption. Am sure the mazda will be better overall to the astra but will (for me) be hard to beat the Leon. Time will tell...

Keep u's updated..

P.S Collection in 2days!!!! ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on August 12, 2008, 03:58:47 PM
Just bought a 2.0 d sport in white. Cant wait to get it!!

Previous cars being ASTRA SRi 1.9 CDTi 150 with XP pack (averaged 44-49 MPG over a tank)
before that MK1 SEAT LEON 1.9 TDi 150 FR (averaged 46-52 MPG over a tank & best car i have ever owned!)

the rest were petrols so i wont include. But these two were driving the same routes/styles etc.
It will be good to compare the Mazda 3, firstly I am not expecting it to be as quick as the other two so probably expecting slighlty better fuel consumption. Am sure the mazda will be better overall to the astra but will (for me) be hard to beat the Leon. Time will tell...

Keep u's updated..

P.S Collection in 2days!!!! ;)

Yeah that 150 VW engine don't half pull hard! That Astra is really tempting spec wise. Ok the engine is a Fiat one but I do like the look of the Astra in SRi spec. Was it reliable? My VW wasn't.

Don't feel bad about selling the Seat - some of those 150 engines were failing in a big way ('02 reg mainly).

I'm currently driving a 1.6 TS2 - so my economy has gone up :) but the performance has gone down  :(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: kerrbryan on August 12, 2008, 08:49:27 PM
The astra was quite a nice drive and in 20,000 miles never failed but did have a start up issue which the dealer couldnt find (surprise). It was only intermitant and was a clunking noise but felt it was going to get worse, and warranty was due to run out, so get rid! ::)
The leon was an 05, bought with delivery miles, had a few issues when i first got it with engine managment lights coming on but turned out to be a faulty wire and again the dealer/s were useless in finding it but apart from this the leon was brill, eyecatching, reliable etc.. and i put 65k on it without replacing anything but tyres!! (Was needing a lot when I sold though!)

Bring on the Mazda. Getting it tomorrow now.


[attachment deleted by admin]
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ben_MPS on August 22, 2008, 12:45:02 PM
08 MPS Aero - only 750miles...

Trip to devon - 190miles @ 85ish all the way - 35MPG
Round town - 20-22MPG
Givin it some - 16MPG  ;D  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: the flying scot on August 24, 2008, 08:45:04 PM
hi all
going on a little road trip this thursday
from aberdeen to london
leaving at midnight
taken my takara auto down only done about390 miles
just wondering about mpg?????
will post all costs and readings from the trip
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on August 24, 2008, 10:43:14 PM
Trip to Ace cafe, 75 miles 33mpg hammering along   ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on August 24, 2008, 11:55:00 PM
Can someone please explain why; if I drive gently around I get 23mpg but if I thrash the b....s off the MPS it returns > 30mpg  ???
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: the flying scot on September 02, 2008, 09:27:13 PM
hi all here a story for you all,
mazda 3 takara 350 miles on clock before i left
after leaving aberdeen trip reading 24.2 mpg
about 200 miles in to trip reading 26.7 mpg
then hit motorways nothing above 80 mph
reading only 28.1 mpg
on return trip same as above nothing above 80 mph
517 miles back trip never got above 29.8 mpg
this was read on av mpg
reading on const mpg at round 35
i think this is far to low or because of it being a automatic gearbox
what is your views on this please??????
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: a15cro on September 02, 2008, 10:00:56 PM
Well in my MPS I can get an average of 37mpg when its driven sensible.

Try zeroing it when you hit the motorway, then it will take an average of your cruising speed. Otherwise it will be fighting to lift from your town driving.

I know its not an exact science but it will let you see what your achieving in a straight line.

Hope this helps.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Coulda on September 02, 2008, 10:23:58 PM
Mazda's computer is WAY WAY off...do the math the old school way to get a good MPG calculation.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on September 02, 2008, 10:36:48 PM
Religiously believing the trip computer is only worthwhile if you zero it at the start of every trip. As a15cro says. The more accurate way is to do a brim to brim calculation method. As an example below is a snapshot from my fuel spreadsheet for a trip from Peterborough to Aberdeen and return in February this year. As you can see my mpg varied quite a lot due to the various types of  travelling conditions but still averaged out around 36mpg and this is for a 2ltr.

date               ltrs      miles     cost       ppl     galls   mpg   days  £~pd     ppm
06/02/2008   38.69   261.7   £40.20    103.9    8.51   30.75   3   £13.40   £0.15     vpower
07/02/2008   18.21   162.1   £20.01    109.9    4.01   40.46   1   £20.01   £0.12   vpower   
09/02/2008   37.94   298.4   £41.32    108.9    8.35   35.75   2   £20.66   £0.14   vpower   
09/02/2008   35.82   293    £40.08     111.9    7.88    37.18   0    £40.08    £0.14    vpower      
16/02/2008   44.24   315    £49.06     110.9    9.73    32.36    7    £7.01    £0.16      vpower

So to summarise the trip computer is only accurate if reset each time and your mpg is probably somewhat higher than was actually indicated.
Hope this helps.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stu17 on September 02, 2008, 10:56:40 PM
going from falkirk to glasgow airport and back , criuse on at 85 most of the time av mpg was 35.can't remember av speed, think it was around about 65 but would not put money on it.. going about the doors as is my usual av mpg 29ish with av speed 20. i have a 2.0 sport with 5500 approx on clock.

Stu
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: the flying scot on September 03, 2008, 11:55:56 AM
thanks all
but how do i reset trip?????
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on September 03, 2008, 11:59:57 AM
thanks all
but how do i reset trip?????

Speedo : keep button above pressed in until it zero's.

Trip computer  :   keep button pressed that selects it ( INFO )
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on September 03, 2008, 12:32:47 PM
Just a quick recap on the trip computer.  Not teaching granny to suck eggs but sometimes this helps.


The Trip Computer has 4 functions and at each press of the info button displays the following.
1.Current Fuel Economy  ( Badly named,  actually shows Current Consumption )
2.Average Fuel Economy  ( As above )
3.Remaining distance you can travel on the fuel you still have.
4.The vehicle average speed.


1. This will give you some indication of how "heavy footed" you are being and shows how much fuel you are using based on accelerator settings vs road speed. If you select this option and then vary your speed you can actually see the read out changing as the computer calculates the result.
(Mine always seems to be extremely high I really don't know why ;) )

2. As above but based on figures calculated since connection to battery or reset.

The remaining distance (3)  is based on the speed you are doing vs the amount of fuel left in the tank and uses data from (1)

The vehicle average speed (4) seems to be a bit erratic. I think the trouble lies in that it calculates based on the distance and time travelled since connecting the battery or resetting the data the same as item (2). This obviously includes static time which subsequently reduces the average. The average speed is recalculated every 10 secs.

To reset the data press & hold the info button for more than 1 sec. It will reset and give you current accurate figures.

Hope this helps.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: wurzel on September 03, 2008, 02:32:37 PM
I don't think it's a question of accuracy, but resetting before a certain type of journey will give you a better idea under those conditions (e.g. the motorway).  Without resetting, the trip computer is computing the average over a longer and longer period and the figure will stabilise, so if you've managed 29.8mpg over 1000 miles say and then drove the next 500 at 40mpg, the computer would still only read 32.6 or so.

Also, it can be a bit misleading to reset once you're on the motorway, especially if it's a shortish journey because a fair bit of fuel is used up accelerating to motorway speed...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: allanpug on September 23, 2008, 01:32:26 PM
weve got a 08 3 takara hatch

we have never let it go past the half line below the quater line, and we get around 260-280 ish,  thats with air con always on(well it makes a small difference)  and thats around town driving. the cars done just short of 3000 miles.

mpg wise dundee to aviemore , we got 46 ish mpg acording to comp.
she's only ever filled with super unleaded.

out off cuiosity   when is the engine run in.  ive seen a few different milages quioted
oh and sorry for my bad spelling ;D

allan
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on September 23, 2008, 11:07:41 PM
weve got a 08 3 takara hatch

we have never let it go past the half line below the quater line, and we get around 260-280 ish,  thats with air con always on(well it makes a small difference)  and thats around town driving. the cars done just short of 3000 miles.

mpg wise dundee to aviemore , we got 46 ish mpg acording to comp.
she's only ever filled with super unleaded.

out off cuiosity   when is the engine run in.  ive seen a few different milages quioted
oh and sorry for my bad spelling ;D

allan

I'd give Regular Unleaded a go. I got more MPG with regular.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Skint on September 24, 2008, 08:27:17 AM
I've had my Mazda for about 6 weeks, I love it but.....................it's really heavy on the petrol, both in town and motorway driving.  Has anyone else noticed this?  So far I've spent about £185 on petrol.  As far as I can make out I'm only getting about 320 miles out of a full tank. I drove a Nissan Almera 1.5 before and a full tank lasted forever.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: finnster on September 24, 2008, 08:47:23 AM
Would'nt say thats too bad, my 2.0 Sport gives me about 245 miles from a full tank, but most of my travelling is urban.

I can get upwards of 350 on long journeys obviously sticking to the speed limits!

PS - Welcome to the forum  ;D ;D ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: metalmorgan on September 24, 2008, 08:55:58 AM
I think you may be the only one on the forum with a Sakata, but during the running-in period of any engine the fuel consumption rate is always a little bit higher.  But I don't know the exact figures.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on September 24, 2008, 09:00:04 AM
I think you may be the only one on the forum with a Sakata, but during the running-in period of any engine the fuel consumption rate is always a little bit higher.  But I don't know the exact figures.

+1. You should see a gradual improvement over the first 2,000-3,000 miles. Its just the engine being new and tight. Keep an eye on the oil level as most cars tend to use more when new.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: allanpug on September 24, 2008, 12:02:20 PM
I think you may be the only one on the forum with a Sakata, but during the running-in period of any engine the fuel consumption rate is always a little bit higher.  But I don't know the exact figures.

is this answer for me.  if it is,  ive not got a sakata, mines is a takara

allan
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on September 24, 2008, 01:23:47 PM
The reply was directed to Skint    ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: allanpug on September 24, 2008, 01:25:33 PM
The reply was directed to Skint    ;)


ah ok.   my bad  lol


allan
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Skint on September 24, 2008, 01:30:21 PM
Sorry should have said it's an '06 and has 14,000 miles on the clock.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: stupotvfr on October 14, 2008, 01:31:44 PM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: allanpug on October 14, 2008, 01:36:53 PM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...

people are discusing it because as this topic header says "mazda 3 fuel economy thread"   and the last time i checked, the 2.3 turbo engine comes in the mazda 3(called the mps)  .....


allan
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on October 14, 2008, 02:12:09 PM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...

Actually the quoted figure is 256bhp and the discussion thread follows the line the contributers take as a matter of personal choice; as far as fuel economy in extreme is concerned I would imagine electric propulsion gives the best fuel returns; my grip is excellent by the way  >:(

.........  but then maybe I'm being pedantic   ;) ;D ;D   ..........
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Mica_MPS on October 14, 2008, 06:34:04 PM
The idea that MPS owners should have zero interest in economy is complete nonsense.

Their choice simply means that they prioritise performance, not that running costs are somehow irrelevant. The superior economy of the MPS was certainly a factor in my decision to choose it over something like a Focus ST (as well as the fact it was quicker, cheaper, more powerful, better built and a lot less ubiquitous).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: acmp on October 14, 2008, 07:23:25 PM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...

I thought this was a funny/joke reply.  Maybe we should all take a step back, forget the stupid price of petrol for a minute, take a deep breath and start again.

 :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on October 14, 2008, 10:54:19 PM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...

I thought this was a funny/joke reply.  Maybe we should all take a step back, forget the stupid price of petrol for a minute, take a deep breath and start again.

 :)

insensitive, methinks, would be more accurate   ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: acmp on October 15, 2008, 08:41:33 AM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...

I thought this was a funny/joke reply.  Maybe we should all take a step back, forget the stupid price of petrol for a minute, take a deep breath and start again.

 :)

insensitive, methinks, would be more accurate   ;D

This seems to be related to how good/bad your economy is.  I'm annoyed because recently I've been getting only just over 36MPG rather than the 38 I was getting.  I suspect the main reason is that I'm late out of the house in the mornings and need to boot it a bit more on the way to work.

I'm sure MPS owners would be very pleased with 36 MPG.  I know I do around 18,000 miles a year so better economy is important to me. If I only did say 6-9K then fun driving would more a priority and an MPS would look like a more attractive purchase.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stuno1 on October 15, 2008, 08:51:27 AM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...

This is the second post i have seen by you/this guy and it appears to me as though he is simply trying to insight arguements!
Everyone knows the MPG of the MPS is suprising ina good way hence the debate. Maybe a mod needs to keep an eye out for his posts and step in where appropriate???
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on October 15, 2008, 09:54:50 AM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...

This is the second post i have seen by you/this guy and it appears to me as though he is simply trying to insight arguements!
Everyone knows the MPG of the MPS is suprising ina good way hence the debate. Maybe a mod needs to keep an eye out for his posts and step in where appropriate???

   + 1 , I thought I was being a bit sensitive; wholeheartedly agree with you Stu.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: metalmorgan on October 15, 2008, 09:56:45 AM
This is the second post i have seen by you/this guy and it appears to me as though he is simply trying to insight arguements!
Everyone knows the MPG of the MPS is suprising ina good way hence the debate. Maybe a mod needs to keep an eye out for his posts and step in where appropriate???

Your right, he is being a tool.  

If he doesnt like MPS's then he doesnt like MPS's - no biggy -  but he's acting like if you drive one then your worse than Hitler.

Must be a Honda employee.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on October 15, 2008, 11:52:07 AM
Maybe a mod needs to keep an eye out for his posts and step in where appropriate???
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: acmp on October 15, 2008, 01:35:27 PM
get a grip people..why are you discussing fuel economy on a 2.3 turbo vehicle kicking out 265 bhp...they just dont fit together....whats the word...oxymoron or something..cant spell i am from yorkshire...if you want fuel economy go buy a 1.4 diesel.. maybe jeremy clarkson from top gear can string a few words together to describe this futile thread...

This is the second post i have seen by you/this guy and it appears to me as though he is simply trying to insight arguements!
Everyone knows the MPG of the MPS is suprising ina good way hence the debate. Maybe a mod needs to keep an eye out for his posts and step in where appropriate???

First one I'd seen, but if there is an antagonist around then maybe some moderation is in order.  Ideally forums should be fun and generally people should get along.  Discussions are good arguments are bad.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: stupotvfr on October 15, 2008, 02:21:47 PM
at least we have one sensible person here, you are right a forum is for open views on subjects and in my view the car is overated and is a 323 lookalike family saloon with a powerful engine and thats it ..but is it worth 18k plus...

no i dont work for honda mate to answer that question..and to answer the other thread on what i drive heres my list:-

Honda VFR vTech 800
Mazda MX5 Sports Mk 2.5
Triumph Rocket 3
Ford Focus Titanium 2.0 TDCi
Audi S3

or and a Corsa van 1.4 TDCi !!!!!!!!!

Please note not in order of any merit or preference...

I think i have a fare spread of vehicles to warrant some sort of opinion on here..but rest assured children i will be deleting my profile ASAP...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: metalmorgan on October 15, 2008, 03:00:53 PM
at least we have one sensible person here, you are right a forum is for open views on subjects and in my view the car is overated and is a 323 lookalike family saloon with a powerful engine and thats it ..but is it worth 18k plus...

no i dont work for honda mate to answer that question..and to answer the other thread on what i drive heres my list:-

Honda VFR vTech 800
Mazda MX5 Sports Mk 2.5
Triumph Rocket 3
Ford Focus Titanium 2.0 TDCi
Audi S3

or and a Corsa van 1.4 TDCi !!!!!!!!!

Please note not in order of any merit or preference...

I think i have a fare spread of vehicles to warrant some sort of opinion on here..but rest assured children i will be deleting my profile ASAP...


Its not your opinion thats the problem mate, its your agressive holier than thou attitude.

....maybe jeremy clarkson from top gear can string a few words together to describe this futile post.



Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Si68 on October 15, 2008, 03:04:14 PM
He seemed impressed initially too :

http://www.mazda3forums.co.uk/index.php?topic=834.msg8805#msg8805

http://www.mazda3forums.co.uk/index.php?topic=541.msg8806#msg8806
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Stuno1 on October 15, 2008, 03:12:12 PM
As above, no one minds neagtive comments as put in the right context it can spark debate.

However, you comments seem to be trying to insite some sort of arguement?

Having an opinion is one thing, knowing how to express that opinion is something else!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on October 15, 2008, 03:18:49 PM
Ok .. I think everyone has made their point now.  I am not locking this thread as it is totally valid.

Differing points of view are a healthy aspect of forum life however character assasination is not a requirement. 


Back on topic everyone please.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: stupotvfr on October 15, 2008, 04:02:16 PM
si68..as i am allowed my opinion i am also entitled to change it as time and problems progress..i guess you have changed your mind a few times in your time..goodbye all..
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on October 15, 2008, 08:05:43 PM
Latest figures; around town about 22 - 25mpg.
   
  .....................  but oh ! what fun he says  ..........................

                          ;) ;D ;D ;D ;D ;D ;D ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: MisterG on October 15, 2008, 08:16:52 PM
I managed to get 37.4mpg in my MPS today  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on October 15, 2008, 08:23:56 PM
I managed to get 37.4mpg in my MPS today  ;D

  ..........  did you push it ?   ;D ;D  ...........
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: allanpug on October 15, 2008, 08:33:25 PM
I managed to get 37.4mpg in my MPS today  ;D

  ..........  did you push it ?   ;D ;D  ...........

lol lol lol


allan
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Coulda on October 15, 2008, 08:41:18 PM
Think your guys gallons are alot bigger than mine...i need to start doing the math myself using the UK Gallon size...Best ive pulled is 32 MP US Gallon.

For most of us the MPS is our only car...its great to have performance but on long trips is nice to stay off boost and be able to go 350+ miles per tank. In my opinion a well rounded car is best... would be great to have 1000 HP with 1 mpg...but (and id venture to guess everyone else woudl too) id rather have 1000 HP at 100mpg...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on October 16, 2008, 08:38:07 AM
Think your guys gallons are alot bigger than mine...i need to start doing the math myself using the UK Gallon size...Best ive pulled is 32 MP US Gallon.

For most of us the MPS is our only car...its great to have performance but on long trips is nice to stay off boost and be able to go 350+ miles per tank. In my opinion a well rounded car is best... would be great to have 1000 HP with 1 mpg...but (and id venture to guess everyone else woudl too) id rather have 1000 HP at 100mpg...

         ;D ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: acmp on October 16, 2008, 04:17:43 PM
Filled up yesterday, 398 miles on the tank and around 37.4 MPG  no idea what I've done to get it up form 36mpg.

Just wishing I'n known morrisons had dropped to 99.9 as I paid 106.9

Coulda, the conversion from US to UK gallons is 1.2 (http://www.onlineconversion.com/forum/forum_1070649656.htm and http://wiki.answers.com/Q/How_do_you_convert_Imperial_gallons_to_US_gallons)

so if you are getting 32mp(us)g that's about 38mp(uk)g. Not bad really
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: littleg on November 06, 2008, 08:14:17 AM
I have a confession to make... the last 3 times I've filled up with petrol I've used BP bog standard unleaded   :o

I've been getting an average 29.5mpg, down from 33mpg with high octane.

Although the cheap stuff's only 97p a litre at the moment I'm worried I might damage the engine if I continue using it  :-\
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on November 06, 2008, 10:49:37 AM
Short term this will not effect your engine. Extreme long term you will lose the benefit of the additives (cleaners, anti knock etc)  found in higher quality fuels. Most modern engines can cope with some variation in quality, but it is unwise to continue this permanently.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: finnster on November 10, 2008, 11:51:32 AM
I stopped using the super as it was so expensive, I am sure that I read on another thread that there is no difference whatsoever between the super and normal - not for a 2.0 Sport anyway which is why I went for the cheaper option.

So - is there any difference??
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Madaz3 on November 10, 2008, 01:05:28 PM
Yes there is a difference - but nothing that you'd notice on the sport - its designed to run fine on the ordinary stuff, so save yourself some money.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on November 10, 2008, 01:18:05 PM
Yes there is a difference - but nothing that you'd notice on the sport  - its designed to run fine on the ordinary stuff, so save yourself some money.
I would say that this is pretty subjective. Personally I am in a position that allows me to afford V-power which I use because I honestly believe that I got better performance from my sport after I started using it and I consider that the additives in it are healthy for my engine.
It is true that the car is designed to run on standard unleaded, but the ECU is clever enough to enhance the acceleration and mpg if it is given the materials (Fuel type ) to work with.
Oh I know this is going to start the arguement all over again but I think I have enough mileage (60,000 over 4.5 years)  under my belt to enable me to say this.
What you choose is up to you I'm just saying. Yes there is a difference, and yes, it is noticeable.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on November 10, 2008, 02:05:24 PM
Yes there is a difference - but nothing that you'd notice on the sport  - its designed to run fine on the ordinary stuff, so save yourself some money.
I would say that this is pretty subjective. Personally I am in a position that allows me to afford V-power which I use because I honestly believe that I got better performance from my sport after I started using it and I consider that the additives in it are healthy for my engine.
It is true that the car is designed to run on standard unleaded, but the ECU is clever enough to enhance the acceleration and mpg if it is given the materials (Fuel type ) to work with.
Oh I know this is going to start the arguement all over again but I think I have enough mileage (60,000 over 4.5 years)  under my belt to enable me to say this.
What you choose is up to you I'm just saying. Yes there is a difference, and yes, it is noticeable.

    +1
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on November 10, 2008, 03:48:43 PM
Yes there is a difference - but nothing that you'd notice on the sport  - its designed to run fine on the ordinary stuff, so save yourself some money.
I would say that this is pretty subjective. Personally I am in a position that allows me to afford V-power which I use because I honestly believe that I got better performance from my sport after I started using it and I consider that the additives in it are healthy for my engine.
It is true that the car is designed to run on standard unleaded, but the ECU is clever enough to enhance the acceleration and mpg if it is given the materials (Fuel type ) to work with.
Oh I know this is going to start the arguement all over again but I think I have enough mileage (60,000 over 4.5 years)  under my belt to enable me to say this.
What you choose is up to you I'm just saying. Yes there is a difference, and yes, it is noticeable.

    +1

I got less MPG in my Sport. Higher Octane fuel does increase compression, but not as much as in a car designed to run on that fuel (Type R, Scooby, MPS). Don't believe the marketing hype of BP and Shell  ;)

In the Sport the knock sensor is bolted onto the block. Most of the cars I've listed use individual sensors 1 per cylinder to maximise the performance. I think the Sports single knock sensor is to prevent dangerous knock. I don't think its capable of sensing the approach of knock on each cylinder and therefore not there to maximise power. Coulda what do you think?

The most I read about was 15 BHP on a Golf Gti (Evo mag). Even on that test the Gti made almost no more BHP on 'race spec' super fuel.

But variances even occur from car to car in the same model. In short try it and see if it makes a difference to your car. I'm guessing MPS feels the a bit 'flat' on regular?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on January 09, 2009, 12:28:23 PM
Administration Message

For those of you who saw the post from jams002. After not receiving any reply from him to the responses from other members, it is my opinion that this person is in actual fact a forum Troll out to cause trouble and dissent. As such and  in accordance with the forum rules, I have taken the unprecedented step of removing his post and all all related posts after his.

Willpower
 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: RichG123 on January 12, 2009, 10:47:34 AM
good move willpower..
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ben_MPS on January 14, 2009, 07:36:09 PM
Administration Message

For those of you who saw the post from jams002. After not receiving any reply from him to the responses from other members, it is my opinion that this person is in actual fact a forum Troll out to cause trouble and dissent. As such and  in accordance with the forum rules, I have taken the unprecedented step of removing his post and all all related posts after his.

Willpower
 
aww, what was his post, I missed it?!?   ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on January 15, 2009, 03:30:32 AM
Administration Message

For those of you who saw the post from jams002. After not receiving any reply from him to the responses from other members, it is my opinion that this person is in actual fact a forum Troll out to cause trouble and dissent. As such and  in accordance with the forum rules, I have taken the unprecedented step of removing his post and all all related posts after his.

Willpower
 
aww, what was his post, I missed it?!?   ;D

Tut Tut, rap across the knuckles Ben. Must spend more time on the forum  ;D ;D ;D ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Jon1978 on January 15, 2009, 11:51:16 AM
Yes there is a difference - but nothing that you'd notice on the sport - its designed to run fine on the ordinary stuff, so save yourself some money.

My previous car was designed to run on ordinary fuel too, but I always ran it on VPower, and the difference in fuel economy and acceleration was noticeable.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Madaz3 on January 15, 2009, 12:33:35 PM
Yes there is a difference - but nothing that you'd notice on the sport - its designed to run fine on the ordinary stuff, so save yourself some money.

My previous car was designed to run on ordinary fuel too, but I always ran it on VPower, and the difference in fuel economy and acceleration was noticeable.

What was the difference in acceleration when you timed it?
Half a second to 60? more, less?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on January 15, 2009, 04:35:40 PM
Yes there is a difference - but nothing that you'd notice on the sport - its designed to run fine on the ordinary stuff, so save yourself some money.

My previous car was designed to run on ordinary fuel too, but I always ran it on VPower, and the difference in fuel economy and acceleration was noticeable.

What was the difference in acceleration when you timed it?
Half a second to 60? more, less?

I know I keep on about this  ???

But until someone can explain how the Sport has the ignition hardware to support high octane fuel I won't believe anything other than it makes no difference. You will get a slight increase of compression (but you won't unlock the fuels full potential). That's the marketing trick BP use saying all cars will benefit. When they should say some cars may have a slight increase others will have a massive increase!

From the engine diagram (Neel you still got them?) there is only one knock sensor and its bolted onto the cylinder block and it listens for knock.

All high performance engines (MPS, 330ci, GTi mk V, Scooby etc) have single knock sensors per cylinder which all make noticeable increase in performance. The Sport doesn't - end of story IMO.

Further from that I had a 1.6 TS2 loaner and it drove just the same as mine - hardly any difference in the suspension. Leading me to think the Sport is more of a trim upgrade than anything else. If that's the case then perhaps the same applies to the engine.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gasman on January 15, 2009, 05:20:03 PM
Hi All, How do Mazda arrive at their MPG figures are they in US gallons 3.78 litres or UK gallons 4.54 litres, they do seem to be very optimistic because I cant seem to get anywhere near the economy they quote, I have converted the 55litre tank capacitiy to 12.1 UK gallons and at 400 miles to the tank it only works out at 33.05 MPG, The average on my trip computer says 36.2 MPG so which is right, This is on mixed driving with a reasonably light right foot in my, 14 month old 1.6 ts2. Anyone found similar, Thanks Gasman.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on January 15, 2009, 05:46:30 PM
I find it awfully hard to hit the EU combined figure of 40.9mpg

In mine the trip meter is fairly accurate and although the tank capacity is a claimed 55litres, my fuel light comes on at about 45litres/10 gallons and I get a 0miles range at 49litres/11 gallons. Never been able to fill up more than 49 litres even from a few mile past 0miles left
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: a15cro on January 15, 2009, 05:47:00 PM
gasman, I think you are about the same as me.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mazdapaddy on January 15, 2009, 10:01:38 PM
I find it awfully hard to hit the EU combined figure of 40.9mpg

In mine the trip meter is fairly accurate and although the tank capacity is a claimed 55litres, my fuel light comes on at about 45litres/10 gallons and I get a 0miles range at 49litres/11 gallons. Never been able to fill up more than 49 litres even from a few mile past 0miles left

Yes, i was on 0 miles left on my trip, and just i squeezed in 50Litres. Is the tank really 55l, or is it intensional by mazda to have a "backup" 5litres?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Jon1978 on January 15, 2009, 11:33:54 PM
Yes there is a difference - but nothing that you'd notice on the sport - its designed to run fine on the ordinary stuff, so save yourself some money.

My previous car was designed to run on ordinary fuel too, but I always ran it on VPower, and the difference in fuel economy and acceleration was noticeable.

What was the difference in acceleration when you timed it?
Half a second to 60? more, less?

I've never been into the 0-60 business. How often do you drag race your car day to day? The important acceleration is mid range for overtaking safely and accelerating off slip lanes etc. Using VPower the BMW had a noticeablely easier surge in power mid-range. As for fuel economy, according to the OBC I would get around 26mpg using normal fuel and around 28-29 using VPower, for around town driving.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gasman on January 16, 2009, 09:50:53 AM
I find it awfully hard to hit the EU combined figure of 40.9mpg

In mine the trip meter is fairly accurate and although the tank capacity is a claimed 55litres, my fuel light comes on at about 45litres/10 gallons and I get a 0miles range at 49litres/11 gallons. Never been able to fill up more than 49 litres even from a few mile past 0miles left

Wow, 40.9 mpg combined, Has anyone achieved this without changing down, I would imagine it may be gettable on a 450 mile straight run in Holland if somebody chopped two inches off your right leg, Joking aside though, Has anyone got close or bettered it, Cheers.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on January 16, 2009, 01:06:29 PM
Wow, 40.9 mpg combined, Has anyone achieved this without changing down, I would imagine it may be gettable on a 450 mile straight run in Holland if somebody chopped two inches off your right leg, Joking aside though, Has anyone got close or bettered it, Cheers.
40+ is quite easy on long journeys providing you are gentle and keep it below 65mph. The best I've got from my normal driving is about 39.5 but that's in the summer, being very gentle on the pedals in traffic and sticking to 60 on the motorway.

My economy figures in my sig are wrong at the moment so I'll update when I get a chance. I did find the new air filter helped in the summer. Not so much of a difference int he cold of winter.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Jon1978 on January 16, 2009, 10:25:01 PM
Wow, 40.9 mpg combined,  Has anyone got close or bettered it, Cheers.

I'll let you know when I've figured out the conversion. At the moment, I'm just working by the principle of "less is more".
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Outboard on February 11, 2009, 08:26:16 PM
Thankfully my trip computer seems to be spot on. After filling up and doing the maths its accurate and coming back at 35mpg which I'm happy with. Thats with a mix of driving but mainly motorway use. 12 days of Mazda ownership and I'm a happy bunny  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Jon1978 on February 13, 2009, 09:16:14 PM
I'm getting around 32 to 35 mpg on my work run, and I got between 39 and 43 mpg on a motorway run the other day.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: garry_mac on February 24, 2009, 03:09:57 PM
My trip computer is showing something like 20 (against the Av /100L - I think that is the display).

Am I correct in thinking that no conversion is needed and that the trip on the Mazda displays MPG. Might sound obvious but I am a noob and the trip says litres which means i need to do some calcs!!!

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: darrude on February 25, 2009, 07:22:23 PM
I'm currently doing 130miles per day commute, and by keeping to a sat Nav speed of 70Mph (75 on the clock), I'm returning over 41MPg on my 2.0l sport.  Really quite impressed.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Jon1978 on February 25, 2009, 09:57:40 PM
My trip computer is showing something like 20 (against the Av /100L - I think that is the display).

Am I correct in thinking that no conversion is needed and that the trip on the Mazda displays MPG. Might sound obvious but I am a noob and the trip says litres which means i need to do some calcs!!!



You need to do some calculations - 20 is very very very poor fuel economy... about 14mpg I believe!!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: garry_mac on February 25, 2009, 10:27:58 PM
Agree. I worked it out on what I got for a full tank and it was coming out at about 23MPG. To be fair it was the first week with the car so I probably did have a heavy foot and air con was probably on constantly. All urban driving too.

I've turned it off and will be driving more conservatively to see what return I get with this tank.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: martin on March 01, 2009, 07:50:16 AM


i know mine is new (200 miles on the clock) but showing an ave of 48 mpg ish it is mostly round town driving (work 3 miles up hill the sat in trafic home again) but done a couple of 40 mile runs in to Cornwall so hilly again

when i fill up i will work it out the real way

martin
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Jon1978 on March 01, 2009, 11:26:04 AM
Just fitted K&N panel filter and already seen an improvement. What a fiddly messing around to get at the air filter though and what is with a cold air feed to the battery????
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NinjaAndy on April 13, 2009, 10:55:09 AM
Hi everyone,

I'm considering swapping my C270 CDI Merc for an MPS. I had a S2000 and a Type R before the oil burner, and im seriously bored of Diesel power now...

However, I've a few questions. Obviously the fuel consumption is  going to be around the 25/30mpg mark. How many miles do you all get from a brimmed tank of fuel? And on average, how much does it cost to fill the tank to full. The merc does 35mpg usually, taking into account I dont do that many motorway miles, so cant really take advantage of its 50odd mpg when its cruising. Combine that with the high cost of diesel, and I'm hoping it wont cost me THAT much more a month to run... (I do around 1200 miles a month, and spend about £250 a month on diesel).

On another note, I test drove the MPS last week, and its amazing! Do you think a dealer in manchester(ish) area would let me borrow one for a day as I'm still not sure about the cheapy interior (sorry)... love the sound system and seats though.

Cheers !

Andy
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Gman on April 13, 2009, 12:29:36 PM
Hi Andy,

I picked up my new MPS on Tuesday.

I brimmed it on Tuesday with V power and it cost £45. With a mixture of town and motorway, I have done 270 miles and there its still got a 1/4 tank left. Apparently, some of the chaps on here have suggested that the MPG improves when you get over 1000 miles or so.

I was a little unsure of the interior, but now I love it. Except for a creek that has developed from the dash, but the dealer in Stockport has been good. So they are fixing it on Tuesday. I think the interior will grow on you and you may start to love it, things I really like, the dials, the steering wheel is comfortable, the gear know is quality, the stereo area, the part leather seats are really comfortable and grip you and keep you planted. Things I dont like so much, the plastic handbrake, plastic arm rest, flimsy mats.

Apart from that, it is fantastic. And great value for money, I got mine for less that 15k brand new, in black and with an aero kit and full tank of fuel, and easy guard protection inside and out.

The aero suspension is quite harsh, so that is smething to consider. I dont mind it so much, but i imagine some people really wont like it, especially if your used to a smooth ride from your merc.

Not sure whether they will give it you for a day. But I would ask stockport mazda, I know they have a demo there and they are helpful.

Good luck
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: scwilson on April 14, 2009, 10:31:01 PM
Just got back from a trip to cornwall (Lands End to be precise) from Bournemouth. Managed to get 650 miles from 1 tank of fuel in my 1.6D TS2 :) Oh yeah....... 65MPG (ish) with 2 adults, 2 kids and a tonne of stuff in the boot.

These feckin Diesels rock!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: stryker on April 19, 2009, 06:25:17 PM
240 miles on a full tank for me. 11 litres~

22mpg.

computer says 25.6 average. :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Maz23MX5 on April 20, 2009, 03:25:41 AM
Car: Mazda3 SP23 (2.3l non-turbo 6-speed manual)
Driving: About 50% motorway@110km/h, 50% urban in peak traffic.

Using 91RON petrol, 7.8l/100km 36.2 MPG
Using 98RON petrol, 7.2l/100km 39.2 MPG
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ScootG on April 20, 2009, 02:37:05 PM
I remember how lucky I was when I had my 3..
Average MPG for me.. 20mpg.
Lowest: 18mpg
Highest: 22mpg.

60L Tank. :-\
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: nobbo on April 20, 2009, 03:53:31 PM
managed an average of 39.7mpg at 50mph over the weekend. my average is usually 23.9mpg but i mostly drive round town. 1.6 takara AUTO.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: anweb on April 20, 2009, 08:38:24 PM
managed an average of 39.7mpg at 50mph over the weekend. my average is usually 23.9mpg but i mostly drive round town. 1.6 takara AUTO.

1.6 Takara AUTO like you nobbo, mostly short distances as well, 25mpg is my best so far, will have to see what it's like on a run at some point.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: martin on May 09, 2009, 07:56:11 PM
504 on the last tank and 45.6l to fill

sure it will get better as it beds in

martin
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: allanpug on May 10, 2009, 04:23:22 PM
we got 331 miles from full to just above the quater. trip says av consumption 43.1 mpg ( 131 mile remaining) were well impressed.  our takara has just past 6000 miles.   that was mostly motorway driving.   we usually get about 27-29 mpg driving about town


allan
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bignose1972 on May 10, 2009, 09:24:09 PM
I've got the 1.6 petrol manual and have done just over 7000 miles.

Since i've started using 95 all the time rather than 98, my economy has improved loads. I'm now getting a good 37mpg average which i'm very happy with. This includes a variety of town and motorway driving.   :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on May 10, 2009, 10:04:44 PM
That's exactly what I used to get out of my 2006 model year 1.6 TS2  :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tom-MPS on May 24, 2009, 11:56:49 AM
I picked my 3 MPS up yesterday and on the motorway, I was averaging 37mpg which I'm chuffed with, however, I was driving with the revs as low as possible.

As for town roads, I'm getting 34-35mpg which I'm also chuffed with!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Infidel_woking on May 26, 2009, 10:47:08 AM
is there a way to turn the computer from l/100km to MPG?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on May 26, 2009, 04:53:53 PM
Check it out in the hand book, as I can't remember :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on May 27, 2009, 11:41:25 AM
Sorry, there is no way of altering the display data. If you rely upon the display to provide you with MPG you will need to use a conversion table. Something like this        http://www.tdiclub.com/misc/conversions.html   There are many available online.
Personally I consider the display to be inaccurate and use an Exel Spreadsheet and do brim to brim filling to obtain the information I need.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Infidel_woking on May 27, 2009, 11:56:14 AM
e and use an Exel Spreadsheet and do brim to brim filling to obtain the information I need.

Thanks Willpower - I dont suppose you have a copy of that spreadsheet with the sums in it, do you?

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: olderbutnotwiser on June 23, 2009, 07:59:12 AM
e and use an Exel Spreadsheet and do brim to brim filling to obtain the information I need.

Thanks Willpower - I dont suppose you have a copy of that spreadsheet with the sums in it, do you?



   You probably know this by now,  but remember the display shows   litres / 100 MILES, not  kilometers.

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Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on June 23, 2009, 11:49:02 AM
e and use an Exel Spreadsheet and do brim to brim filling to obtain the information I need.

Thanks Willpower - I dont suppose you have a copy of that spreadsheet with the sums in it, do you?



   You probably know this by now,  but remember the display shows   litres / 100 MILES, not  kilometers.

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Only on the post facelift (2006 +) models. If the display is showing litres/100Kms I'm afraid there is no way of changing it.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: olderbutnotwiser on June 23, 2009, 12:50:26 PM
e and use an Exel Spreadsheet and do brim to brim filling to obtain the information I need.

Thanks Willpower - I dont suppose you have a copy of that spreadsheet with the sums in it, do you?



   You probably know this by now,  but remember the display shows   litres / 100 MILES, not  kilometers.

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Only on the post facelift (2006 +) models. If the display is showing litres/100Kms I'm afraid there is no way of changing it.


   Did the display EVER show  litres/100kms    ?      Mine is a 2005 and shows   litres / 100miles.

 Just multiply by 4.546 in your head and it'll be in  mpg.   ;) 

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Title: Re: The Mazda 3 Fuel Economy Thread
Post by: KirkSi on June 23, 2009, 03:11:10 PM
Quote
Just multiply by 4.546 in your head and it'll be in  mpg.   ;) 

We'll just rename you Rain Man!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: olderbutnotwiser on June 24, 2009, 07:53:47 AM
Quote
Just multiply by 4.546 in your head and it'll be in  mpg.   ;) 

We'll just rename you Rain Man!

 Perhaps not, as the calc is wrong. 

It should of course be divide by 4.546 then divide 100 by the result.   obviously.   :) :)   

so :-

gallons.    litres per   miles   =   mpg
1.10              5       100                90.9
1.32              6       100                75.8
1.54              7       100                64.9
1.76               8       100                 56.8
1.98              9       100                 50.5
2.20             10      100                  45.5
etc

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Title: Re: The Mazda 3 Fuel Economy Thread
Post by: figgyburn on July 07, 2009, 11:42:15 AM
hi guys,i have had the car for three weeks now and have been impressed with it except for the fuel consumption.i got the 1.4 as i drive around town mostly and did not need speed.a full tank of unleaded 95 gets me around 400 miles.my previous octavia 1.6 fsi gave me 530 miles on super 99.very dissapointing.cheers john
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: olderbutnotwiser on July 07, 2009, 09:46:33 PM
hi guys,i have had the car for three weeks now and have been impressed with it except for the fuel consumption.i got the 1.4 as i drive around town mostly and did not need speed.a full tank of unleaded 95 gets me around 400 miles.my previous octavia 1.6 fsi gave me 530 miles on super 99.very dissapointing.cheers john
----------------------------------------------------------------------------------------------------

  I think they've got the same fuel tank size as well.   

I've got the 1.6 diesel, and am getting  650 - 700 miles to a tank.       ;D   


-----------------------------------------------------------------------------------------------------
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bignose1972 on July 08, 2009, 08:03:19 AM
hi guys,i have had the car for three weeks now and have been impressed with it except for the fuel consumption.i got the 1.4 as i drive around town mostly and did not need speed.a full tank of unleaded 95 gets me around 400 miles.my previous octavia 1.6 fsi gave me 530 miles on super 99.very dissapointing.cheers john

John, I think you will find that you'll still have about 10 litres left in your tank as the fuel light comes on quite early. Fill it to the brim and work out your MPG from there. I've got the 1.6 petrol and i'm getting about 420 miles on 95 - i get less on 98.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Pikestra on July 08, 2009, 06:07:51 PM
Quote
Just multiply by 4.546 in your head and it'll be in  mpg.   ;) 

We'll just rename you Rain Man!

 Perhaps not, as the calc is wrong. 

It should of course be divide by 4.546 then divide 100 by the result.   obviously.   :) :)   

so :-

gallons.    litres per   miles   =   mpg
1.10              5       100                90.9
1.32              6       100                75.8
1.54              7       100                64.9
1.76               8       100                 56.8
1.98              9       100                 50.5
2.20             10      100                  45.5
etc

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Im not saying your calculations are wrong but I find the easiest way to work it out (using maths) is; 100 divided by your consumption (in L/100miles) then divide by 0.219969157 (as that is what 1 litre is in Imperial gallons).

For example my car says 13.2L/100miles:
so thats 100 / 13.2 = 7.57
then 7.57 / 0.219969157 = 34.44

at least i think thats right, if not you can just use Google to convert it for you ie type "13.2l/100miles to mpg" and it will Google will do the rest for you

If it displays 13.2L/100Km then you will have to divide 7.57 by 1.609344 (as thats 1mile in km) and then divide by 0.219969157. But luckily my car displays in L/100miles so its easier

Red= Your consumption
Blue= Miles Per Litre

I hope this is easy for people to understand or have I just complicated things further? lol i was never the best at trying to explain things  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on July 08, 2009, 08:30:45 PM
How about doing it this way :P

Multiply your litres by .22 and it converts them into gallons, for example :

10 litres multiplied by .22 = 2.20 gallons

Divide that into the miles covered and it gives you your MPG, for example :

100 miles divided by 2.20 gallons = 45.45 mpg

Simplies  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daz31168daz on July 11, 2009, 06:18:31 PM
Filled up today with a trip reading 385 miles.
According to the fuel computer the 3 had 85
miles left in it, 2 blocks showing on fuel
gauge. The driving was mainly urban to and from work to the
supermarket, school run etc. ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on August 01, 2009, 06:55:51 PM
Having just replaced my 10 year old Rover 416 with a 2008 1.6 (petrol)Takara saloon I was interested to see how they would compare on fuel economy. When new, the Rover had a slightly higher BHP & a faster 0-60 speed of 10 seconds (according to the book). Both have a 55 litre fuel tank and I could get 350 miles per tank out of the Rover on my normal commute if I didn't push it (sticking more or less to the speed limit on motorways). This was conveniently enough to get me through 2 whole weeks with a fill up every other weekend.
Although it had only done 63000 miles The Rover was sounding like it needed it's differential bearings replaced & so was "beyond economical repair" and for it's last 2 weeks I tried to be a bit more careful with my right foot - when I traded it in it had done 356 miles on one tank and the fuel warning light had not come on so it had at least one & a half gallons left.    

I've been running the Takara for 2 weeks now on my usual commute to work and trying to take it at the same pace (and kept use of the air con to a minimum) to make a comparison , although I probably did a bit more in-town driving. Frankly I'm surprised that the consumption doesn't seem that much better than the Rover! I brimmed it and re-set the trip computer at the start of the fortnight, the Trip recorder read zero miles left in the tank at about 350 miles on the Odometer ( the fuel warning light had come on about 20 miles before this) and when I brimmed it again at 359 miles I had used 48.05 litres. Without going into the maths that doesn't seem to be a big difference considering the 10-15 year old technology in the Rover.  I can only put it down to the fact that the Mazda has only done 3400 miles & the engine is still "tight", & the Rover revved at 3250rpm at 70mph & the Mazda is revving at about 3500rpm at that speed.  ( Not that I'm not enjoying the multi CD player, iPod socket & occasional climate control) Zoom zoom. ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on August 01, 2009, 08:17:42 PM
Hello  Aidan, I was getting about 36 mpg from my 2006 1.6 TS2, but currently achieving 40 mpg from my all new 3 1.6 Sport ;D ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on August 01, 2009, 10:15:30 PM
Hello  Aidan, I was getting about 36 mpg from my 2006 1.6 TS2, but currently achieving 40 mpg from my all new 3 1.6 Sport ;D ;D
The new one books 44 vs. 40 for the old one so its sounds like its making the difference.

I know what you mean Aidan, its quite hard to consistently high economy. You need to really take it easy and sit below 70 on the motorway. It might get a little better with more miles.

I had some success with better economy at times by using a non OEM air filter but sometimes it is so inconsistent I just don't know.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: PACH on August 11, 2009, 11:27:36 AM
Hello,
I am a new member on this site and a new Mazda3 owner.
Just over a month ago a bought my Mazda 3 1.6 Sport ( White), ex demonstrators with 4500 miles on the clock. The car was registered in March 09.
I like the car very much as it is very comfortable and drives well. I feel that the car is slightly underpowered. Slight inclines and you more or less have to change down to the second gear.I covered over 2000 miles and most of it was motorway driving. My speed on the motorways was always between 60 to 70 miles/hour. The best fuel consumption that I got so far was 37 miles/galon. From a 1.6 engine I expected better fuel consumption. Has anybody got any feed back on this? I also found that driving on the motorways an extra gear was mising.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on August 12, 2009, 08:31:21 PM
I'm finding my 2008 1.6 Takara is not as "torquey" as my Rover 400 (1.6si). Although it seems to be revving at about 500rpm faster at any given speed in 5th than the Rover did,  I find I have to change down more often to get some acceleration. I also expected the 3 to be noticeably more economical but it doesn't seem to be much, if any better. I think there is an argument to fit 6th gears to all cars now as "cruising" gears for better economy.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bignose1972 on August 12, 2009, 08:53:32 PM
I think 37 mpg for the 1.6 petrol is about right. It's what i get in mine with 11k on the clock. Don't forget that you'll be using the Automatic Climate Control a lot more during these hot British summer months which has an effect on economy... ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: PACH on August 12, 2009, 10:21:13 PM
Thanks for your replies. i called in at my local Mazda dealer and was told that for £25.00 they can do some checks, but if the computer in the car shows 37miles/galon it is corect. After having a long conversation with them and told them that I will bring my car for service to them, they told me that they will do the checks for free. I understand that somebody took a car manufacturer to court as the car did not come up to what was in their brochure. This car is my first Japanese car and somehow I expected better fuel economy for a 1.6 engine, otherwise the car is great.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on August 13, 2009, 12:14:32 AM
Thanks for your replies. i called in at my local Mazda dealer and was told that for £25.00 they can do some checks, but if the computer in the car shows 37miles/galon it is corect. After having a long conversation with them and told them that I will bring my car for service to them, they told me that they will do the checks for free. I understand that somebody took a car manufacturer to court as the car did not come up to what was in their brochure. This car is my first Japanese car and somehow I expected better fuel economy for a 1.6 engine, otherwise the car is great.

Which bit  Harrogate ? Went to H College FE in early '70's lived in Harlow Ave.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: PACH on August 13, 2009, 11:57:37 AM
Pannal, just off the A61 into Gate.
By the way, what should I expect to pay for my first service on my Mazda3?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on August 13, 2009, 03:55:04 PM
Pannal, just off the A61 into Gate.
By the way, what should I expect to pay for my first service on my Mazda3?

3k   -  94.95  -   they even charged 43p for sump washer ( b....y stealers !!  )

9k   -  157.02 -  ( make sure they don't replace pollen filter as it will add 50 to price and unless you in desert  it does'nt need doing )

Also get a print out of the DSR ( digital service record ), should be offered but may not.

Pannal, know it well. Most abiding memory is pulling out as a pillion passenger from the pub in front of a Ford Cortina doing about 40mph and mate in front giving it a good twist so as I nearly came off. Bit of power that bike had. Lucky my dad did'nt know as he was dead against bikes   ;D ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: PACH on August 13, 2009, 03:59:52 PM
Thanks for the info. i was told that my first service will be at 12500 miles or a year from new. Is this corect?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: PACH on August 13, 2009, 05:24:21 PM
This info is from a well known web site:

What the car achieves in EC certification  tests and what it achieves in
real life are two different things. Some people have successfully sued
over the difference. Check the tyre pressures. The car might do a bit more
on Shell V-Power petrol, which is better for the engine as well. But I
doubt more than 2 - 3mpg better.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on August 13, 2009, 06:11:17 PM
Ah stupid me ! Did'nt read post properly;  MPS is the schedule I posted. Not sure of 1.6 but 12k would seem reasonable. Depending on how long I was to keep car I would certainly reduce to 10k when warranty is out and use best oil available; bit of research needed there but Millers oils have always been way in advance of most OEM specs and I would swear by them.
For a diesel I would also add a pump lube like Millers Diesel + even in this day and age ( need to read spec for engine carefully though as some are'nt keen on other food !! )
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: meccano04 on August 13, 2009, 06:18:17 PM
I got 29.5mpg on my last tank,

thats in a 2007 2.0l Sport, with a k&n panel filter, sounds about right from what i read in the thread! Still a bag of hurt as one of my mates has a 2007 audi TT that gets more :(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on August 13, 2009, 08:03:45 PM
Just as a side we get 37 mpg out of my wife's MX 5 2.0 Coupe when touring recently, we were driving how can I say---- quite swiftly ;) ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rob360 on August 13, 2009, 08:18:47 PM
I got 29.5mpg on my last tank,


Lol, I usually get more in an mps than that.  :P
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: meccano04 on August 13, 2009, 09:37:47 PM
I got 29.5mpg on my last tank,


Lol, I usually get more in an mps than that.  :P

:( thanks for that! Makes me feel worse!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on August 13, 2009, 10:34:29 PM
I am averaging about 23 generally per month; mind you son's Suburu is doing same and he is a bit less heavy footed. Now he wants a flat he is putting it up for sale   >:( >:(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on August 14, 2009, 12:17:01 AM
I got 29.5mpg on my last tank,


Lol, I usually get more in an mps than that.  :P
Lol, Perhaps you should drive it with a bit more enthusiasm then :P ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: fluffy998 on August 20, 2009, 01:29:27 PM
Hi,

I was wondering if someone can help me.  My trip computer says L100/km for some reason and not L100/m.  Have alooked in the handbook to see if I can change it but no details on how to.  I have an 2004 2.0sport UK model.  Recently had a new stereo fitted by mazda and it could have been since then it has been in KM and not Miles.  Any help much appreciated.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on August 20, 2009, 03:43:19 PM
For a 2004 2.0 Sport this is perfectly normal. Mine is the same. Regretably there is no way to alter it. Later models had an updated display which showed MPG , but not the  2004.
There is somewhere in this thread a conversion equation that you can use to determin MPG
Sorry
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Mindis on August 20, 2009, 10:52:24 PM
I am doing 35.3 MPG for my 2.0 petrol   ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: olderbutnotwiser on August 21, 2009, 09:44:02 AM
For a 2004 2.0 Sport this is perfectly normal. Mine is the same. Regretably there is no way to alter it. Later models had an updated display which showed MPG , but not the  2004.
There is somewhere in this thread a conversion equation that you can use to determin MPG
Sorry

  Am I correct in saying then that in pre  2006 facelift models,   some were made with the computer

 showing   Litres per  100 Kilometers,  and some showing  litres per 100 miles   ?   

  Sounds  sus to me.      Could these "kilometers" ones have been using  computers originally destinned for Europe  ? 

 Car makers do sometimes release small batches of cars built to the wrong spec.   Bit like the 20p  scenario going on just now. 

       
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on August 26, 2009, 09:23:43 PM
Hmm. I'm pleased to find my '58 1.6 Takara is mpg. I couldn't be pestered to do the conversions from L/100km.

Here's a question - on my commute to work in a morning I've been watching my current fuel economy and as far as I can tell, on the same stretch of road I'm getting better economy nearer 4000 rpm than 3500 rpm. Would that be possible as a result of being nearer peak torque, or am I just making this up  :-\ ? 


edit- I'll presume that I'm making it up due to lack of responses.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andyl on October 14, 2009, 04:43:57 PM
I have had a 2.0 sport for 4 months now and I am averaging about 37mpg.A mixture of motorway and fast(ish) country roads. Well impressed.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: anweb on October 15, 2009, 11:12:48 AM
I have a 1.6 Takara auto, on a fast blast up to Essex I averaged 30.3 mpg... not inpressed at all although I love the car.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on October 16, 2009, 07:41:46 PM
I have a 1.6 Takara auto, on a fast blast up to Essex I averaged 30.3 mpg... not inpressed at all although I love the car.

No its not great the 1.6 auto, its about the same as my 2.0 manual. But on the plus side its meant to be a great automatic.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on October 18, 2009, 01:18:26 PM
New option for MPS just been announced.




[attachment deleted by admin]
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Joey-a on October 18, 2009, 02:37:20 PM
My 2.0 petrol sport only gives me 27mpg and when i really put my foot down it goes down even more.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BJ the exile on October 18, 2009, 05:25:45 PM
My 2.0 petrol sport only gives me 27mpg and when i really put my foot down it goes down even more.

 I get 23 average with MPS   O0
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: PACH on October 19, 2009, 11:19:03 AM
I have a Mazda3 1.6 Sport 09 reg. The best that the indicator showed was 37.4mpg but when I calculated the consumption it came to just over 39mpg. Which do you think is correct? ???
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Data on October 19, 2009, 11:38:56 AM
On a recent holiday to France driving on N and D roads I managed 40.4 mpg from my MPS.

I was sticking to the speed limits and using cruise control whenever possible. Fixed camara spots are well posted, it's the random speed traps that can catch you out.

Everyday driving I get an average of 29.6 mpg
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Bob1958 on October 19, 2009, 11:56:57 AM
On a recent holiday to France driving on N and D roads I managed 40.4 mpg from my MPS.

I was sticking to the speed limits and using cruise control whenever possible. Fixed camara spots are well posted, it's the random speed traps that can catch you out.

Everyday driving I get an average of 29.6 mpg
40.4mpg is very good, the best return I've had was 36.5 mpg, but then the engine is still tight - average is around 30mpg, that's having a few thrills here and there, if you know what I mean.  ;D

The 2.0L Sport returns about 35mpg on average, got 42mpg around town once driving like Miss Daisy, wasn't much fun.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Data on October 19, 2009, 04:29:42 PM
Hi Bob1958

You say your engine is still tight, how many miles have you covered? My MPS is 18 months old and I've only just done 10,000 miles.

I also run a diesel Renault Megane 02 plate with 90,000 miles average 54 mpg.

Did not buy the MPS for its economy.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Bob1958 on October 20, 2009, 12:05:41 PM
Hi Bob1958

You say your engine is still tight, how many miles have you covered? My MPS is 18 months old and I've only just done 10,000 miles.

I also run a diesel Renault Megane 02 plate with 90,000 miles average 54 mpg.

Did not buy the MPS for its economy.
Engine has only done 3400 miles, bedding in nicely.

Off course you don't buy the MPS for it's fuel economy, I only commented because I thought 40.4 mpg was exceptional from this engine - the 36mpg I got was on the return trip home after picking the car up, a nice steady run at around 50mph. For me an average of 30mpg is more than acceptable for the type of driving I do - mostly town/local.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tomoose on October 20, 2009, 01:08:57 PM
40.4mpg is insane! Don't expect to get that too often! Would be interesting to see if you worked that out (brim to brim) or if that was the computer read out.

For info, the first 250ish miles in my Mazda 3 2.2D 185 showed 52mpg on the read out, but worked it out to be 36.5mpg!! Although the handbook does say the car calibrates the mpg readout by working out the fuel used and distance covered since new, so as the miles pile on, it should get increasingly accurate. The book also says to not fill up with less than 10l at a time to not confuse the calibration.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Data on October 20, 2009, 02:47:32 PM
40.4 on the trip computer.

I once got 915 miles from one tank of diesel in my Passat estate. That was the first week of ownership. Brim to brim worked out at 59.7 mpg.

Have never bothered with brim to brim measurements with the MPS I just fill up and go. I only set the trip computer to zero as an exersise and as I mentioned before to keep within the French speed limits.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on October 28, 2009, 09:40:41 PM
I've been manually checking my fuel consumption brim to brim & found it's pretty close to the 34.5 average mpg the trip computer is telling me ( Note: I'm driving a 1.6 Takara) . I have my suspicions about my average speed being 32 mph though, it doesn't seem to have changed since I got the car & I've done about 3000 miles.
I'm also getting more confident about the amount remaining in the tank when the computer reads zero (about a gallon & a half). 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sidehaas on November 10, 2009, 10:47:35 AM
I have an 07 MPS.  I always use super unleaded, shell vpower when is available.
I normally get about 30 mpg (indicated), which my investigations suggest is actually about 26 mpg (ie the trip computer is 4 mpg optimistic).
However, at the weekend I tried driving 70mph all the way and accelerating slowly everywhere to see the difference (190 mile journey) - and at the end it was indicating 39.1! (probably 35 in reality)  Now I have in two days of local driving already brought that average back down to 38 even being light-footed, but have to say I was astonished at the difference - I didnt think my MPS was  capable of reaching the dizzy heights of 35 mpg.  It might make me reconsider my driving style on those long motorway trips...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Grant on November 10, 2009, 10:54:36 AM
I have an 07 MPS.  I always use super unleaded, shell vpower when is available.
I normally get about 30 mpg (indicated), which my investigations suggest is actually about 26 mpg (ie the trip computer is 4 mpg optimistic).
However, at the weekend I tried driving 70mph all the way and accelerating slowly everywhere to see the difference (190 mile journey) - and at the end it was indicating 39.1! (probably 35 in reality)  Now I have in two days of local driving already brought that average back down to 38 even being light-footed, but have to say I was astonished at the difference - I didnt think my MPS was  capable of reaching the dizzy heights of 35 mpg.  It might make me reconsider my driving style on those long motorway trips...

On a recent longish trip my MPS averaged (according to computer) 38.6 mpg. Once back home and back into short pottering around the village trips this quickly drops to 25-26mpg.

Question: If I take the long route to work say 15-20 miles will I use less petrol and save the planet/resources than just popping 1/2 mile down the road????? (lol)

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: anweb on November 10, 2009, 12:56:19 PM
1.6 Takara Auto, 2 and a half tanks to do a 760 mile round trip, 30mpg according to trip computer... should have bought an MPS lol.. Anybody else with an auto disappointed with their mpg?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ROBCALLY on December 02, 2009, 10:18:46 AM
I am a New Mazda 3 Driver 1.6 petrol and when I purchased the car with 6500 miles
on the clock the fuel info said 27.9  average and now I have done
1000 miles after resetting it it says 28.8 average is this the best I am going to get
not what the specs in the brochure says.
What are other 1.6 petrol drivers getting.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: anweb on December 02, 2009, 11:31:00 AM
I am a New Mazda 3 Driver 1.6 petrol and when I purchased the car with 6500 miles
on the clock the fuel info said 27.9  average and now I have done
1000 miles after resetting it it says 28.8 average is this the best I am going to get
not what the specs in the brochure says.
What are other 1.6 petrol drivers getting.
According to the main dealer when I complained about my MPG, and I quote... "They aren't the most economical car" (no s**t), I think, sadly you aren't going to get much better than that.. the figures quoted in the brochure are way optimistic, to put it politely.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tomoose on December 02, 2009, 12:14:16 PM
The autobox will be eating your petrol. Your mpg doesn't sound too bad considering.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Madaz3 on December 02, 2009, 01:33:30 PM
I am a New Mazda 3 Driver 1.6 petrol and when I purchased the car with 6500 miles
on the clock the fuel info said 27.9  average and now I have done
1000 miles after resetting it it says 28.8 average is this the best I am going to get
not what the specs in the brochure says.
What are other 1.6 petrol drivers getting.

Bloody hell Rob - I completely understand your annoyance at that.
That's a TERRIBLE figure for such a "modestly" powered car. (& I don't mean to offend  :)

My MPS is ballistic & for both years I've had it, I've averaged 30.9

Granted I do a lot of dual-carriage-way stuff on my commute.
It  still gets some B-road thrashing too though.

I'd have thought close to 40mpg from a 1.6 normally aspirated.
(I used to get 35/36 ish from my old 2 litre vectra!)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: anweb on December 02, 2009, 02:54:54 PM
The autobox will be eating your petrol. Your mpg doesn't sound too bad considering.
Agreed the auto will drink more fuel, before this I had an Astra auto 1.8, same round trip (760 miles) was done on a tank and a half of fuel, at the same cruising speed, just to put it into perspective, plus I could get 35 MPG around town.  I'm not knocking the car itself, it's far better than the Astra, but the mpg is appalling.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ROBCALLY on December 02, 2009, 03:25:01 PM
My 1.6 is manual.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on December 02, 2009, 04:56:18 PM
My '58 1.6 Takara has indicated around 34 - 35 average mpg over the 5 month's I've had it. I do about 800 miles per month and about 2/3 of my mileage is dual carriageway commute at 70mph.( + or - 5mph). This is pretty close to the figures obtained by brimming the tank at each refill & working out the mpg manually.
I don't believe the average mph figure which has not moved from 32 mph since I got it.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on December 02, 2009, 05:27:35 PM
35 is par for the course in mixed driving I'm afraid. Not sure what's up with yours ROB, mine was never that poor, even when new. Maybe it needs a bit more time and effort in loosening it up ;) You might want to try some brim to brim calcs to see the real economy (my trip comp is very accurate but I don't know if they all are).Do you use the same fuel all the time? Try some normal 95 ron U/L from a different 'premium' brand

Travelling to work on the the motorway through some SPECS cameras at the moment. At an indicated 50 I'm getting 50+ mpg and I know that long distances at 60-65 will yield around 45mpg however take the car to 70 and engine over 3.5k rpm and the economy tails off significantly. I find its sub 40 at 70mph 35ish at 80, lower at more ;)

Which also mean that when I'm doing town driving the mpg is awful because of constant stop/start. The 3 miles between the petrol station last night and the motorway this morning yielded, 18 mpg! It seems to be (quite obvious really) acceleration that really kills the economy and whenever I do much of this sort of driving my mpg is bad.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Newbs on December 02, 2009, 08:53:48 PM
just bought 2006 sport (5 speed) first mazda - seems a little thirsty
on board computer says ave con 21 - 23 and i am taking it easy and not driving it hard
driving mainly on a roads + motorway
is this normal ?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on December 02, 2009, 09:24:33 PM
Have a look in the owners handbook at the instructions for the trip computer ( somewhere near the radio/CD player section I think) and follow the instructions on how to re-set the trip computer. Your average consumption will be affected by all the mileage done since the trip computer was last re-set.  I get around 35mpg from my 1.6.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rob360 on December 03, 2009, 12:42:30 PM
You should be able to reset the computer by just holding down the "info" button when the average mpg is being displayed.

I would expect an average consumtion much higher than that for you car.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on December 03, 2009, 01:00:33 PM
Have you reset it since you got the car? try that and drive a bit first if not to get your figure not last owner.

Is this a miles per gallon figure? Early cars were in some silly metric measurement

If it is genuinely 21-23 that's a bit low. Try taking some brim to brim calculations when filling up and work it out that way. Another very simplistic test I use is to fill the tank, reset the trip meter and see how many miles I've done when the fuel light comes on. Divide by ten and I get an approximate mpg figure (light seems to come on around 10 gallons of petrol consumed)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ROBCALLY on December 03, 2009, 02:43:13 PM
Since I have had the car I have drove proberbly 80 % of the 1000 mls around town
and also getting used to driving it as I have noticed I tend to drive a lot more in third
gear than in my old car I was in fifth gear for some reason.
I will keep monitering it and see what happens.
I have been getting about 300 miles on a tank of petrol but I fill up before it gets
to low and never seen what happens when you get to low.
Does a light come on or do you get a warning message and how many miles can you do after.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on December 03, 2009, 02:47:19 PM
.
just bought 2006 sport (5 speed) first mazda - seems a little thirsty
on board computer says ave con 21 - 23 and i am taking it easy and not driving it hard
driving mainly on a roads + motorway
is this normal ?

I agree with everything said above. I've had a 2004 Sport since new and I do brim to brim calculations every fill. My average is 33mpg over the whole of the life of the car. This varies enormously when on a long trip. Uk to South of France came out at 38mpg
Peterborough to Aberdeen 35mpg. Some fairly rapid (spirited) ;) driving 31mpg.
Generally though over 30mpg on a regular basis
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Data on December 03, 2009, 04:36:04 PM
21-23 mpg wow!! if those figures prove to be correct you have got something wrong. I have never had a figure as low as that from my MPS. I don't use my car everyday in stop/start driving conditions but I do have some fun if you know what I mean and my mpg is somewhat better than 21-23.

I would expect more from your sport if you drive mainly on A-roads and M-ways because driving at a constant speed should bring out the best mpg from any car.

Follow advise posted from others and try brim to brim refueling. I hope its a mistake with your trip computer.   
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on December 03, 2009, 06:04:21 PM
just a thought-
you said it's a 2006 Sport - does it actually say "average mpg" in the window- it might be calibrated for litres/100km
or something, as earlier readouts were not in mpg.

can anyone else with a 2006 model confirm?   
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on December 04, 2009, 03:30:44 AM
just a thought-
you said it's a 2006 Sport - does it actually say "average mpg" in the window- it might be calibrated for litres/100km
or something, as earlier readouts were not in mpg.

can anyone else with a 2006 model confirm?   

mine's 2005, its in litres/100km
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: olderbutnotwiser on December 04, 2009, 06:46:48 PM
just a thought-
you said it's a 2006 Sport - does it actually say "average mpg" in the window- it might be calibrated for litres/100km
or something, as earlier readouts were not in mpg.

can anyone else with a 2006 model confirm?   

mine's 2005, its in litres/100km

    .  .    Are you sure  ?        Mine is in    litres / 100 miles.       Have a wee check, as it should

 be litres per 100 miles for uk  pre  2005/6 facelift cars  .  .     

------------------------------------------------------------------------------------------------
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on December 05, 2009, 01:10:17 AM
just a thought-
you said it's a 2006 Sport - does it actually say "average mpg" in the window- it might be calibrated for litres/100km
or something, as earlier readouts were not in mpg.

can anyone else with a 2006 model confirm?  

mine's 2005, its in litres/100km

    .  .    Are you sure  ?        Mine is in    litres / 100 miles.       Have a wee check, as it should

 be litres per 100 miles for uk  pre  2005/6 facelift cars  .  .    

------------------------------------------------------------------------------------------------
nope, you're right, typo on my part, it is litres/100miles
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: K13 RFF on December 08, 2009, 06:02:34 PM
according to the cars computer my maz 3, 2.0l deisel turbo sport is averaging 43.5mpg. is this good??? wot do other owners of this model average???
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: duncagr on December 10, 2009, 12:04:07 AM
Nobody has mentioned a figure in L/100miles. This is how my car shows economy, can i change it or does it mean iv bought a non uk model?? Its a 2004 1.6ts2 petrol if that helps?!?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on December 10, 2009, 03:38:40 AM
Nobody has mentioned a figure in L/100miles. This is how my car shows economy, can i change it or does it mean iv bought a non uk model?? Its a 2004 1.6ts2 petrol if that helps?!?

Firstly, welcome to the forum. All pre 2006 facelift models that had a trip computer function, had  L/100miles as standard display. No you don't have a foreign or unusual NON Uk version and regretably you cannot change it.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: duncagr on December 12, 2009, 08:37:37 PM
Ah ok, thats sorted that out then thank you. Ye, a bit annoying but im getting used to it.

Really good site anyway people, iv got a good few hours of reading ahead of me! haha
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: border80 on January 22, 2010, 09:48:28 AM
I've just bought a 59 plate Mazda 3 TS 1.6 Petrol but am getting some really disappointing consumption results. The best I can get out of it, even when driving on the motorway and being extremely light-footed, is 35mpg which falls way short of the 44.8mpg combined economy its supposed to be able to do. Is it because it's a new car? I've checked both the computer and done some calculations of my own at the pump and they match. I've done 800 miles in it now but there are no signs of improvement. Not sure I'll be able to afford all that extra fuel!!! Anyone else had similar problems with a 2009-10 Mazda 3?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on January 22, 2010, 05:52:22 PM
If you read back through this thread you'll find the 1.6 isn't that economical if you are cruising
at or above 70, and of course real town driving & the "urban cycle" are 2 different things altogether.
It will improve (a bit) as the engine loosens up.  I'm getting 33-34mpg average out of my "old shape"
'58 1.6 Takara.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Outboard on January 22, 2010, 06:05:28 PM
I average 34-35mpg from my 2.0 Sport on a tank by tank basis.
Last week though, I did a bit of town pottering,add to that the snow drifting championship we all had to take part in for the past week or so and it took it down to 27mpg. The way I see it,they may not be as economical as other cars out there but with them going wrong less than most other cars,they make more financial sense in the long run.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on February 06, 2010, 05:19:27 PM
back to the topic of "how much is left in the tank when the light comes on ? "
Having been keeping notes over the last 6 months I'm happy that the low fuel light is coming on and trip computer
is reading zero with a pretty consistent amount left in the tank each time.

My low fuel light always comes on when there is 29/30 miles left according to the trip computer. I have driven for up to 30 miles after the computer reached zero and there has been at least 4 and a half litres remaining when I've filled up.
I've just filled up (brimmed it) after driving for 25 miles beyond "zero" (including some town driving) on the trip computer and managed to put 50.05 litres in. - so, just under 5 litres left... but I realise that this includes the filler pipe so I wouldn't push it much further !  In the cold / snowy weather & with slower moving traffic my average consumption has dropped to  32-33mpg. I got 358 miles out of the last tank. 

I know there are those who never let their tank get that low in case sediment gets drawn into the fuel system,
( In the past I have run a fuel injected car dry with no ill effects but not everyone might get away with it).
but it's useful to know how far you can go on "empty" if you are on a motorway or a long trip on unfamiliar roads.

"Your mileage may vary", as they say   8)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: icable on February 08, 2010, 12:21:52 PM
I chose a 1.6 petrol sport as my company car, I am also experiencing MPG below the brochure figures. 
Odometer is now 1779 miles and the fuel economy is not turning out as expected and I have been lightfooted.
I have done 3 return journeys to Canterbury and mixed local journeys.
Urban 32 ( acceptable)
Combined is 36mpg (Not 44.8)
Extra Urban high 30's to low 40's (Not 54.3 !)
 
With these mpg's it would have been more cost effective to have purchased the 2.2d (150ps).
At what mileage will the engine have "loosened" ?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on February 08, 2010, 01:00:10 PM
I chose a 1.6 petrol sport as my company car, I am also experiencing MPG below the brochure figures. 
Odometer is now 1779 miles and the fuel economy is not turning out as expected and I have been lightfooted.
I have done 3 return journeys to Canterbury and mixed local journeys.
Urban 32 ( acceptable)
Combined is 36mpg (Not 44.8)
Extra Urban high 30's to low 40's (Not 54.3 !)
 
With these mpg's it would have been more cost effective to have purchased the 2.2d (150ps).
At what mileage will the engine have "loosened" ?

I found that replacing the OEM air filter with a K&N replacement gave me a couple mpg (in the mk1 3 1.6). Not sure if you'd want to do it in such a new car though. You do wonder about the effectiveness of the filter when you see the size of the holes and how thin it is compared to the paper one.

I'd still give it a few more miles, unfortunately needs a bit of welly to break it in too.

Tips will be as before, try to keep it below 70 on the motorway and be gentle when accelerating and also I get far better figures in the summer. Especially if you do your urban stop start when the engine is cold.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: rabster on February 10, 2010, 12:23:54 PM
Currently showing 65mpg on 100 mile journey
 Can't complain about that
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ben_MPS on February 10, 2010, 03:36:47 PM
I've got a drive down to cornwall at the weekend so will be able to see what MPG it can really do instead of the 18-20 i get pootling to and from work every day. Its about 250miles so hopefully get easily there on one tank if i take it easy and keep to 70ish.
Looking forward to seeing how far she will go now "loose". Only proper long journey was also to cornwall but car only had 200miles on the clock when I left!!!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: MrBen on February 11, 2010, 09:21:43 AM
I've got a drive down to cornwall at the weekend so will be able to see what MPG it can really do instead of the 18-20 i get pootling to and from work every day. Its about 250miles so hopefully get easily there on one tank if i take it easy and keep to 70ish.
Looking forward to seeing how far she will go now "loose". Only proper long journey was also to cornwall but car only had 200miles on the clock when I left!!!

doing the same trip tomorrow, mine is 300 exactly (done it before) was going to hit ultra economy mode if thats possible in an MPS  8)
i've often spotted the odd scoobie or skyliner in the inside lane trying to get max mps, what speed do we think you need to drive in the MPS to get the best mpg
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: inayellowshirt on February 11, 2010, 07:39:47 PM
seems to be the weekend to hit the southwest as Im off down there tomorrow.


Im watching my fuel closely at the moment as she seems to have suddenly started drinking petrol, seems to have lost at least 50 miles off a tankfull since Jan with my normal local driving.

I can normally make the trip down with plenty in reserve going a good speed, so if I dont get it still the garage is getting a call.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Si68 on February 12, 2010, 02:58:47 PM
I've got a drive down to cornwall at the weekend so will be able to see what MPG it can really do instead of the 18-20 i get pootling to and from work every day. Its about 250miles so hopefully get easily there on one tank if i take it easy and keep to 70ish.
Looking forward to seeing how far she will go now "loose". Only proper long journey was also to cornwall but car only had 200miles on the clock when I left!!!



doing the same trip tomorrow, mine is 300 exactly (done it before) was going to hit ultra economy mode if thats possible in an MPS  8)
i've often spotted the odd scoobie or skyliner in the inside lane trying to get max mps, what speed do we think you need to drive in the MPS to get the best mpg

seems to be the weekend to hit the southwest as Im off down there tomorrow.


Im watching my fuel closely at the moment as she seems to have suddenly started drinking petrol, seems to have lost at least 50 miles off a tankfull since Jan with my normal local driving.

I can normally make the trip down with plenty in reserve going a good speed, so if I dont get it still the garage is getting a call.

Whereabouts in Cornwall are you all going?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: MrBen on February 12, 2010, 03:27:21 PM
South coast for me - falmouth / truro area
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ben_MPS on February 13, 2010, 05:39:35 PM
Right. Walsall to Camelford via Street, just shy of 260 miles, 180 on the M5, the rest on A and B roads with a few miles of single lanes at the end. The trip reckons 37.2mpg for the whole journey so I guess that's about 34-35 in reality. Pretty dam good for a car with that much oomph, and considerng I got bored by the second leg and my speed was gradually creeping towards 90! An impreza would have had to refuel mid way!!! ;D
Will calculate when fuel light comes on what it did over the 10 gallons.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: inayellowshirt on February 14, 2010, 11:05:59 PM
My trip was Watford > Plymouth. M25/M4/M5

The trip seems to have done the job as the after the 240m trip down, I still had 120miles showing as still available to do, best run yet. Probably due to far too many 50mph zones due to roadworks and cruise controlling it in 6th gear through them.

I think my foot has probably gone a little heaby on the acceleration when driving local.  :-\
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: MrBen on February 14, 2010, 11:30:16 PM
mine was north london > truro nearly 300 miles each way on the dot.

M4/5 all the way apart from past exeter where your fuel efficency changes dramatically with the more hills

anyway trip computer says 34 avg mpg with average speed of 52
I didnt reset apart from the odometer prob cause i dont know how to do it? but the avg speed seems to crawl really slowly up to match? in my opinion too slowly. In reality i must have averaged 60+ though youre right yellow lots of 50 restricted zones probably helped mpg.

M4/5 is much better than the 303 for that trip even though its longer, the A303 is up and down and single carriage in lots of places, this of course is more fun but does nothing for mpg.

same as the other ben (why so many bens drive mps???) the leg back was boring so did take often to flooring it out of awkward situations . . . why? . . . cause i can ;)

Lots of cornwall action because its a bank holiday, couple of RS (nice) and spotted a crystal white mps in falmouth - anyone own up? looked good though, different wheels? will check the "showroom" now, see if i can spot you. Lots of other junk around gtis, astras, novas, scoobies etc


 . . . . . .update
looking at the gallery, its quite possible it was a mk2, the wheels are the mk2 wheels, how i noticed this and not the version i dont know. i should have acknowledged but was too keen checking it out as we passed i forgot - apologies.

 . . . . . .update
looking at the gallery, its quite possible it was a mk2, the wheels are the mk2 wheels, how i noticed this and not the version i dont know. i should have acknowledged but was too keen checking it out as we passed i forgot - apologies.



Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 17, 2010, 10:05:45 AM
Thought some of you may be interested, just done a 120 mile trip with a 70% motorway, 20% A roads and 10% town driving and achieved the following mpg ;D

Car is a 2009 1.6 Sport Hatchback :)

[attachment deleted by admin]
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tomoose on February 17, 2010, 10:12:37 AM
Thought some of you may be interested, just done a 120 mile trip with a 70% motorway, 20% A roads and 10% town driving and achieved the following mpg ;D

OMG I didn't realise how different the display was on non-nav models - that looks like its from the 80s!! (sorry).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 17, 2010, 11:32:35 AM
Thought some of you may be interested, just done a 120 mile trip with a 70% motorway, 20% A roads and 10% town driving and achieved the following mpg ;D

OMG I didn't realise how different the display was on non-nav models - that looks like its from the 80s!! (sorry).

I'm from the 40s so its modern to me ;D and apologies accepted
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: hondo on February 20, 2010, 07:14:03 PM
Hi people...I have a 2008 1.6 auto 5 door hatchback. I have had the car from new and its been getting steady worse on fuel over the past 3 months. at present im returning around 19 to the gallon....the car is doing worse than my wifes 4.6 range rover!!....anybody experienced anything like it?...im having to take it to Mazda but unfortun atley the local dealership went bust sept last year so havent a clue what they are gonna tell me when I take it in Manchester to have them "diagnose" the problem and rectufy. Any [pointers would be a great help.

Many thanks in advance
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on February 21, 2010, 10:23:02 PM
wow google09 thats really good, i get 26.9 mpg out of my 1.6 sport nav
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on February 21, 2010, 10:27:24 PM
I think you may have misunderstood that post. Go go and have another read.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on February 21, 2010, 10:32:30 PM
were you talking to me willpower?!, if so then what have i missunderstood?!, i though this was a fuel economy thread!?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on February 21, 2010, 10:34:15 PM
Yep  I think you will find that Google was joking about being from the 40's himself . Not the 40's MPG
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on February 21, 2010, 10:44:32 PM
yeah i know, i was looking at the picture that is attatched to that poast his car says 42.9mpg average!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 22, 2010, 07:46:33 AM
Actually samps and Willpower the fuel economy reading was 43.2 avg  ;D and in fact I was born in the late 40s  :o if that helps us all move on and sorry if I created some confusion with my post ;)

Perhaps my joints are less responsive than they used to be, thus the load pedal is depressed with less enthusiasm than when I was younger resulting in a few more mpg  ;)

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: samm on February 22, 2010, 11:04:11 AM
Well, I filled up our 2009 2.0 Sport D yesterday and worked out the MPG and it was.......35.4!!!  What a crock of ******!  I wouldn't be so annoyed but we recently moved house so my wife doesn't do any short runs to the kids school or the shops as she walks now.

Bye bye Mazda, hello something else that is petrol!!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Madaz3 on February 22, 2010, 12:35:32 PM
I've been using my wifes car for my commute recently.

It's a petrol Mitsubishi Colt - 1.3 Auto.
I worked out the mpg on the last tank & it was 45mpg!!!

A lot better than the 28 I get on the same drive from my MPS.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tomoose on February 22, 2010, 12:37:39 PM
My 2.2D 185 seems to be sitting around the 42mpg mark (thats working it out - the computer lies!)

Filled up this morning and am going to try and see what I can get from a single tank driving it economically. :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shearer27 on February 22, 2010, 01:45:08 PM
I own a 2005 2.0 Sport.

Averaging 39/39.5mpg.

How does this compare to other Sport owners?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 22, 2010, 03:40:45 PM
My 2.2D 185 seems to be sitting around the 42mpg mark (thats working it out - the computer lies!)

Filled up this morning and am going to try and see what I can get from a single tank driving it economically. :)

I'll be filling up with fuel tomorrow, so will be able to work out the actual fuel consumption to compare against the computer reading and will post the results too :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: kenco on February 22, 2010, 03:48:44 PM

Quote
Posted by: shearer27 
Insert Quote
I own a 2005 2.0 Sport.

Averaging 39/39.5mpg.

How does this compare to other Sport owners?

Im getting about 250 miles to a tank but im only knocking back and forth quite short distances.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shearer27 on February 22, 2010, 04:03:40 PM
As I'm mainly only commuting 32 miles a day on dual carriage-ways and 'A' roads this makes a lot of difference to fuel consumption. Scared to boot it though as I think you might be able to see the fuel gauge move before your very eyes (although from what I'm reading it's not as bad as an MPS – but you do get more performance with one of these beauties)!!!!

Nothing comes for free (150bhp has it's up and down sides I suppose, so more fun = more dosh).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 22, 2010, 06:13:21 PM

Quote
Posted by: shearer27 
Insert Quote
I own a 2005 2.0 Sport.

Averaging 39/39.5mpg.

How does this compare to other Sport owners?

Im getting about 250 miles to a tank but im only knocking back and forth quite short distances.

Currently covered 315 miles and have a quarter of a tank of fuel left, but still filling up tomorrow :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: welly on February 22, 2010, 09:27:35 PM
My 2.2D 185 seems to be sitting around the 42mpg mark (thats working it out - the computer lies!)

Filled up this morning and am going to try and see what I can get from a single tank driving it economically. :)


Same here computer reading 44-45 actual being 41-42. Range about 450
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 23, 2010, 10:23:37 AM
My 2.2D 185 seems to be sitting around the 42mpg mark (thats working it out - the computer lies!)

Filled up this morning and am going to try and see what I can get from a single tank driving it economically. :)

I'll be filling up with fuel tomorrow, so will be able to work out the actual fuel consumption to compare against the computer reading and will post the results too :)

Well went out this morning as promised and filled the car up to the filler neck as before and managed to squeeze in 36.6 litres of Tesco 95ron unleaded after covering 321miles, that means to my reckoning I'm actually doing 39.9mpg and the trip computers reading 40mpg.  ;D

For the trip computer to be accurate you're driving habits must be consistent over time, for example if you accelerate wildly for a 5 miles after driving steadily for a 100 then the computer will give a lower and incorrect overall reading, thats my take on the matter anyway

So I'm well happy ;D ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Jamie_Mazda3 on February 23, 2010, 12:34:23 PM
I drive a 6 month old 1.6 sport and I am getting on average 30.3mpg is this bad?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 23, 2010, 01:55:33 PM
I drive a 6 month old 1.6 sport and I am getting on average 30.3mpg is this bad?

It all depends on how you drive it, I don't accelerate hard so my consumption would be less than those that do. In the end it all depends on what you want from the car, performance or economy. :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Witless_Steve on February 28, 2010, 12:11:04 PM
I'm getting around 35 MPG doing about 70 miles a day with a good bit of motorway driving.
I did take it for a decent spin of the same distance but without using any motorways and so limited to going 60, and got nearly 40 MPG.
Is that about right for a petrol 1.6?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 28, 2010, 01:18:47 PM
I would say that's spot on for a 1.6 driven the way you stated for the 1st generation 3 ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: K13 RFF on February 28, 2010, 07:00:44 PM
i can average about 45 mpg in my 2.0D which i think is quite good

i even managed to average 42 mpg driving on the country roads today  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rim on February 28, 2010, 07:23:34 PM
I got 30.8 mpg today out of my MPS :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: K13 RFF on March 01, 2010, 06:00:59 PM
I got 30.8 mpg today out of my MPS :)

that wasnt too bad  :o well you were quite far behind the sports  :P :P hehe
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: revstuart on March 20, 2010, 11:22:48 PM
Has anyone fitted a Turbomag Fuel Magnatizer.  I just got one from ebay for a fiver but am not sure whether or not I should fit it now?  Any comments would be appreciated.
Regards
Stuart
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Wanos on April 14, 2010, 06:23:39 AM
My MPS only has 1500 miles on it but I am getting about 360 miles on a tank on a decent run which I thought was alright. Don't know what the works out mpg, whats the size of the tanks them?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: wurzel on April 14, 2010, 03:28:22 PM
My MPS only has 1500 miles on it but I am getting about 360 miles on a tank on a decent run which I thought was alright. Don't know what the works out mpg, whats the size of the tanks them?
360 miles is pretty good going.  It's a 55 litre tank, so if you absolutely drained it then you'd be looking at 30mpg.  Most of us struggle to get more than about 50 litres in though as the computer says 0 miles pretty early - more likely you're getting 33-36mpg.  There's loads of discussion on here about fuel economy...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tomoose on April 14, 2010, 04:25:20 PM
I only tend to get about 400 miles range, but yes I reckon there are 2 gallons left in the tank when the bloody light comes on! Drives me mad, because at the genuine 42mpg I've been getting, 450-500 miles from a tank should be a breeze. I hate standing at petrol stations, just let me use all my fuel Mazda PLEASE!!!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rich196 on April 14, 2010, 04:34:33 PM
Theres nothing stopping you using it, you will just get laughed at if you run out :D Its not like your mazda didnt give you fair warning.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on April 14, 2010, 08:17:46 PM
my 8 month old 1.6 sport got 34.5mpg and 43mph average speed on my eco run to work not to bad considering i was getting less than 20mpg and 47mph out of it befor!

(http://i747.photobucket.com/albums/xx112/samp4856/005-1.jpg)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on April 15, 2010, 07:54:12 AM
I don't know how or why but as I'm getting closer to 50k miles, I'm finding it easier and easier to hit 40mpg on a regular basis. Even did a 70mph+ motorway trip last week and got 41+ mpg.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on April 15, 2010, 09:10:03 AM
Hmmm.... I need to get mine up to 50k then haha
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mark on May 03, 2010, 01:41:09 PM
(http://i247.photobucket.com/albums/gg137/markone_/photobucket/Mazda3%20Sport/MPG.jpg)

Mainly getting av 56MPH motorway 46MPG

A little happier now than when I first got the car..As MPG was pretty naff.....
Still only got 6k on the clock so I suppose I'm still running in.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 03, 2010, 02:02:21 PM
yeah but thats becuase u relax listening to radio 2! i got fried for listening to radio one! still atleast it isnt heart sx!!!


OFF TOPIC ! ! !
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mark on May 03, 2010, 02:05:43 PM
LOL    Radio 2 is my time in the car, till my son gets in and onto Radio 1, always a battle.   ;D

OFF TOPIC ! ! !
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 03, 2010, 02:19:11 PM
haha i find radio one has a good mix!, especially on the way home on a friday! club classics, then again heart do the same thing!, ohh well! atleast the new 3's have an ipod plug in ;)


OFF TOPIC ! ! !
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on May 03, 2010, 03:02:17 PM
(http://i79.photobucket.com/albums/j124/willpower128/Emos/620044001173394813.gif)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mark on May 03, 2010, 09:14:20 PM
(http://i79.photobucket.com/albums/j124/willpower128/Emos/620044001173394813.gif)


Not off topic is it really!

Isn't it a well known fact that the faster, harder the music the more aggresive the person drives. Therefore more fuel is used.
So listening to Radio 2 will improve fuel consumption.
Well has done in my case.

Give it a go, let us know the results!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 03, 2010, 09:37:47 PM
exactly hence why i said about it!,

atleast you know what i was aiming at make, pluss your cars white ;) haha!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: indigo on May 04, 2010, 11:28:43 AM
HI all, I'm new but guess what - I am glad I found this thread as last time I checked the forums no one had posted up anything yet.

I too am shocked by the fuel consumption of mine, it's only 6 months old with 6k on the clock and I do a mix of motorway and town driving, a careful lady driver too! I average about 34 mpg.

I get better consumption with my mx5 1.8 petrol, but I can't fit the baby in there (and wouldn't try either).

I know it's probably swings and roundabouts but the reason I purchased the 3 was too get the same 'kind of' handling of the x5 but be a family car for me and the little one. As someone else said earlier, do you want performance or economy? It's true, but I want both.

I was considering looking to the diesel but as far as I can tell peops are only getting maybe 40ish to the gallon with them too?

How disappointing. Am I mad? A few years ago I had a nice wee clio 1.5diesel and used to get anywhere from 60-70mpg with that - I think it wasted me. I do find the mazda to be a better car. Maybe I should just keep it and see how it goes?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on May 04, 2010, 01:35:22 PM
hello indigo

out of interest, what engine size is it?

i think it is still relatively new though, at 6k miles

mine is an old 3 from 2005, and 2 litre, and i do maybe 60:40 motorway:urban, i've got 95k on mine and i'm getting about 33mpg out of it

a diesel is always going to give you more miles, but i prefer the drive/ride of a petrol
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: indigo on May 04, 2010, 01:52:29 PM
oops Shian thought that would appear under my avatar - it's 1.6
I realise it's quite new but I will probably have to run with it to see what happens when the engine loosens up?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Duc de Pommfrit on May 04, 2010, 02:04:27 PM
hello indigo

out of interest, what engine size is it?

i think it is still relatively new though, at 6k miles

mine is an old 3 from 2005, and 2 litre, and i do maybe 60:40 motorway:urban, i've got 95k on mine and i'm getting about 33mpg out of it

a diesel is always going to give you more miles, but i prefer the drive/ride of a petrol

Are you happy with 33mpg?   
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on May 04, 2010, 02:26:54 PM
hello indigo

out of interest, what engine size is it?

i think it is still relatively new though, at 6k miles

mine is an old 3 from 2005, and 2 litre, and i do maybe 60:40 motorway:urban, i've got 95k on mine and i'm getting about 33mpg out of it

a diesel is always going to give you more miles, but i prefer the drive/ride of a petrol

Are you happy with 33mpg?   
i'm happy with 33mpg, given that its 2litre, and that i do like to push it a bit, and enjoy the acceleration and look at the gap between me and the car behind...(without breaking any speed limits btw) i think 33 is good

indigo, i think it may still be able to give you a bit more yet, i don't know, what does everyone else think...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: inayellowshirt on May 04, 2010, 07:52:16 PM
I seem to be getting mid 30's mpg on my 2litre petrol.

What I find interesting is the consol was telling me approx mileage on a full tank was 320 miles, but now this has gone up to 400 miles (although I get about 350 out of it before I bottle it and fill her up, usually to about 47 litres of fuel)

I assume the car must do some calculations on fill up as recently I have started running her past the 0 miles on the approx fuel range.

Anyone else found this?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: meccano04 on May 05, 2010, 09:06:39 PM
hello indigo

out of interest, what engine size is it?

i think it is still relatively new though, at 6k miles

mine is an old 3 from 2005, and 2 litre, and i do maybe 60:40 motorway:urban, i've got 95k on mine and i'm getting about 33mpg out of it

a diesel is always going to give you more miles, but i prefer the drive/ride of a petrol

Are you happy with 33mpg?   
i'm happy with 33mpg, given that its 2litre, and that i do like to push it a bit, and enjoy the acceleration and look at the gap between me and the car behind...(without breaking any speed limits btw) i think 33 is good

indigo, i think it may still be able to give you a bit more yet, i don't know, what does everyone else think...

i get about 29mpg from my 2007 2.0L, should I be worried?! I wonder if there's anything I could do to improve it!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 05, 2010, 09:30:07 PM
hello indigo

out of interest, what engine size is it?

i think it is still relatively new though, at 6k miles

mine is an old 3 from 2005, and 2 litre, and i do maybe 60:40 motorway:urban, i've got 95k on mine and i'm getting about 33mpg out of it

a diesel is always going to give you more miles, but i prefer the drive/ride of a petrol

Are you happy with 33mpg?   
i'm happy with 33mpg, given that its 2litre, and that i do like to push it a bit, and enjoy the acceleration and look at the gap between me and the car behind...(without breaking any speed limits btw) i think 33 is good

indigo, i think it may still be able to give you a bit more yet, i don't know, what does everyone else think...

i get about 29mpg from my 2007 2.0L, should I be worried?! I wonder if there's anything I could do to improve it!

nope at one point my average mpg on my 1.6 was 15.4mpg :D!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: YoungTurk on May 05, 2010, 10:59:45 PM
I have been consistently getting 39.5 mpg from my 1.6 petrol for the past 3 months. I've done just over 5000 miles so far with 60:40 ratio of motorway to town driving. I think this is as good as you can expect and seems it is achievable. I don't push it when moving from standstill (don't care much about the gap between me and the over-zealous Golf driver infront of me!), often use my gears to reduce my speed when slowing down with little breaking necessary and don't try to keep a constant speed when going uphill (check your instant economy readings when you do that!). Yes, it is boring but I guess I care more about the long-term economy than the short-term thrill of adrenalin injection.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 05, 2010, 11:46:08 PM
when i did what i considered to be a serious eco run, i got something like 34.5mpg with an av speed of 43mph!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on May 06, 2010, 08:48:24 PM
Be honest  Sammy! you only know stop and go :P ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: YoungTurk on May 06, 2010, 11:27:23 PM
when i did what i considered to be a serious eco run, i got something like 34.5mpg with an av speed of 43mph!

My average speed so far is 30 mph! Of course, I am assuming that the trip computer's information is reasonably accurate...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on May 07, 2010, 07:08:55 AM
when i did what i considered to be a serious eco run, i got something like 34.5mpg with an av speed of 43mph!

My average speed so far is 30 mph! Of course, I am assuming that the trip computer's information is reasonably accurate...


You're not wrong YoungTurk :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on May 10, 2010, 05:08:55 PM
I seem to be getting mid 30's mpg on my 2litre petrol.

What I find interesting is the consol was telling me approx mileage on a full tank was 320 miles, but now this has gone up to 400 miles (although I get about 350 out of it before I bottle it and fill her up, usually to about 47 litres of fuel)

I assume the car must do some calculations on fill up as recently I have started running her past the 0 miles on the approx fuel range.

Anyone else found this?
quote]

............................................................
I reset my trip computer settings before a long trip in March at m/way speeds (including some enforced 50 limits) and since then on my normal commute I have seen the average MPG slowly slide down from about 48 to 34.5 where it seems to have levelled off.
I regularly run the car for 30 miles past the point where the trip computer indicates "0" miles left & still have about a gallon left in the tank when I fill up. The computer does make adjustments as it "learns" the MPG you are getting. When I reset it it tells me I have a range of about 420 miles on a brimmed tank, but this estimate reduces as the petrol is used at a faster rate and it reaches "0" at around 350-360 miles.  Eventually the estimated range on a full tank starts to reduce.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ali3izzle on May 10, 2010, 05:41:20 PM
Thought I'd join in on this one as I've just noticed something horrifying. Over the past 14 days I have put £120 in my 1.6 petrol. That's at 118.9 at my local and it filled the tank twice. I got 520 miles out of it. If I've worked this out right that's an average of 20MPG! Think i'm going to sack off the 3 and get something more economical.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on May 10, 2010, 06:06:21 PM
Thought I'd join in on this one as I've just noticed something horrifying. Over the past 14 days I have put £120 in my 1.6 petrol. That's at 118.9 at my local and it filled the tank twice. I got 520 miles out of it. If I've worked this out right that's an average of 20MPG! Think i'm going to sack off the 3 and get something more economical.


Well Ali3izzle I make that out to be 23.4mpg if the tank is empty and or down to where you started the check.
How much fuel is left in the tank and what where the driving conditions? ???
I would have thought that the 1st generation 3 should be getting low to middle thirties with mixed driving conditions, as that 's what I was getting with my first 3  a 2006 TS2 :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ali3izzle on May 10, 2010, 07:51:55 PM
Mine is a 2006 ts2. Driving conditions were mostly dry, maybe 60 miles in the rain. Possibly 80 or 90 miles with air-con on. All tyres are correctly inflated. But still 23mpg is a bit harsh for a 1.6. Really am concidering a change to diesel because of this. As much as I love the Mazda.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 10, 2010, 08:27:03 PM
hm... mazda 3 deisel any one?! haha!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ali3izzle on May 10, 2010, 08:52:49 PM
Na if Its gonna be diesel it's got to be worth it. Peugeot 407 Coupe 2.7 V6 GT looks a bit different. That or the Vauxhall Insignia SRI nav 160.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 10, 2010, 08:59:38 PM
ohhh got to go 407 matey! :)!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: tonynw on May 10, 2010, 09:52:46 PM
Hi

I have a 1.6 ts 2005 reg i have had it for 6 months and have never got more that 26mpg some times it is down to 23mpg got to say superb car but sold it today cant live with the fuel consumption, i have a toyota diesel 55mpg all the time a seat ibiza 1.4 diesel 70 + mpg all the time so mazda had to go, now looking at mazda diesels but not sure what to buy in the range.

tonynw
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on May 12, 2010, 01:38:09 AM
i'm kinda surprised that everyone seems to be getting low mpg out of 1.6.  Mines a 2 litre and after running in, i've never dropped below 30mpg
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: indigo on May 12, 2010, 08:13:00 AM
Hi
I have a 1.6 ts 2005 reg i have had it for 6 months and have never got more that 26mpg some times it is down to 23mpg got to say superb car but sold it today cant live with the fuel consumption, i have a toyota diesel 55mpg all the time a seat ibiza 1.4 diesel 70 + mpg all the time so mazda had to go, now looking at mazda diesels but not sure what to buy in the range.

tonynw

Tonynw- what model is your toyota? I was looking at maybe changing to a mazda diesel, but tbh when I read the rest of the posts on here, it's not much difference for mpg.

i'm kinda surprised that everyone seems to be getting low mpg out of 1.6.  Mines a 2 litre and after running in, i've never dropped below 30mpg
Shian, I'm surprised too, as the mx5 1.8 petrol I have does much better on fuel consumption and I can kick the ar** out of it, it's great, but obviously not practical for a family. I'm getting on average 40-44mpg with it, and this is me manually calculating it out, there's no on board average calculator etc. I'm finding it slightly depressing that the new mazda is pants. I know there isn't much in it but getting 400 miles out a tank is worse than getting 450 miles. I too have been going with the on board calcs for my mazda 3, but I've been running it and will fill up this week at some point, then I can tell the real mpg. It's probably feeling so uneconomical as petrol is more costly now. It's 1.19 per litre at my local.....:(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 12, 2010, 10:57:14 AM
When i was using works mx5 i was getting high teens low twentys on consumption so my 3 only get about an extra 5~10 mpg over the mx5 on average

by the way it was a 2.0 sport tech manual r/c
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ali3izzle on May 12, 2010, 01:53:14 PM
This wouldn't normaly be an issue for me. The way I see it is you put petrol in, you use said petrol, then you put in some more but after looking around and doing a bit of research, I'm not willing to accept that a 1.6 should be putting out figures like this when on paper the BMW M760 L with nigh on 500BHP can get 21mpg. I just think it's too much for such a small car.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 12, 2010, 02:04:09 PM
no the bmw has to work less to get up to speed, and sits at lower revs once its at speed, my 1.6 sits at basically 3.7k at 70, and i find just to keep up with traffic i never change below 4,000 - 4,500 rpm!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: hondo on May 12, 2010, 02:52:09 PM
Mine is a 2006 ts2. Driving conditions were mostly dry, maybe 60 miles in the rain. Possibly 80 or 90 miles with air-con on. All tyres are correctly inflated. But still 23mpg is a bit harsh for a 1.6. Really am concidering a change to diesel because of this. As much as I love the Mazda.

Mine is a 2008 1.6 auto and i get 17mpg round town ... and the best I've managed on a run is 28mpg. The best the dealer can get is 26 combined. There is definitely something wrong that isn't being  picked up methinks. ... what frustrates me is the lack of willingnes to investigate on the part of Mazda. Hence my wish to change my car despite my enjoyment of my gorgeous Mazda3
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 12, 2010, 03:05:06 PM
its not tha bad actually my mum had a 1.4 207 and the figures were basically the same as my 1.6 3!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Bob1958 on May 12, 2010, 03:24:13 PM
With the MPS I get a constant 30mpg driving in 30/40mph limits locally/round town.

Get around 35mpg on my runs down south, this is mostly on the M1 (J38 -> J14).This could be improved.  ;D

I don't hang about and have fun when I feel like it.

I'd be sickened if I was getting a fuel consumption as low as what has been mentioned here with a much lower powered engine.

My old 06 2.0 sport did 35mpg locally/round town, being careful I got 41mpg once. On a long run I got between 37mpg - 40mpg.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 12, 2010, 03:37:15 PM
what thats really low consumption, my mums 2.0 does about 10 less than that every were...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: wurzel on May 12, 2010, 06:01:31 PM
Yep, my MPS gets about the same Bob1958...  I even touched the heady heights of 40mpg (just!) once on a lazy A-road trip, kept it to about 50-60mph in sixth, the engine's only doing about 2k revs.   Did overtake once or twice too...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 12, 2010, 07:11:10 PM
yh but the mps doesnt have to try like the 1.6 or 2.0 haha!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ScootG on May 12, 2010, 10:48:36 PM
If I get 21mpg, I'm literally bouncing.  :D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 12, 2010, 11:46:35 PM
haha i know.. i ran the companys r3 for about 3 days when i 1st started and ohhh my.... 300 miles and 3 tanks of juice later.... haha!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Witless_Steve on May 13, 2010, 08:55:03 AM
Sweet lord I don't know how you boys drive but I don't get near those fuel stats.
If I drive like the wrath of God I get no lower than 31 with everything on and going like the clappers.
If I drive in town a lot I get 32-34 and if I go on the motorway I get 33-35, eco runs get me 36-38.
I pulled a trailer load of gravel on a motorway and got better fuel economy than 20, sheesh. Incidentally I got 31.2 for hauling the trailer.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: b3nny05 on May 16, 2010, 11:17:03 PM
just finished a trip to the coast and back in my 07 mps - managed 36 mpg (on info display so prob more like 33-34 mpg in reality).  Car had 2 of us in it and was fully loaded with luggage.  Mainly A roads and dual carriageways - drove at a sensible pace with a few overtakes here and there.  Quite impressed TBH, almost 2 cars in one! a frugal-ish tourer and mad seat of the pants gas guzzler!   
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: philip51 on May 18, 2010, 02:40:53 PM
Mine is a 2006 ts2. Driving conditions were mostly dry, maybe 60 miles in the rain. Possibly 80 or 90 miles with air-con on. All tyres are correctly inflated. But still 23mpg is a bit harsh for a 1.6. Really am concidering a change to diesel because of this. As much as I love the Mazda.

There's something wrong here...I have a 1.6 petrol (2009 Mk1), and I get about 36mpg if I don't drive with a heavy foot, or 33mpg or so, if I do...something that may be skewing people's results here is the fact that the low fuel light comes on, on mine between 41-42 litres gone, but there's a 55 litre tank it, so this has to be taken into account when calculating mpg.  If you are calculating your mpg based on a 55 litre tank, until the light comes on it works out about 26-27mpg in normal driving.  There again, if the trip computer (my car doesn't have one) is giving you the 27mpg then maybe I'm totally wrong.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ali3izzle on May 18, 2010, 03:02:05 PM
This may not be the same on every car but when the miles remaining gets to 0 on mine it takes 50 litres to fill it so I worked out my figures off 50 litres as I didn't use the 5 litre reseve. 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: indigo on May 18, 2010, 03:31:05 PM
Interesting as yes, the low fuel light does seem to come on a bit early. In fact mine came on at the point I refuelled and the display reckoned I could go another 24 miles.

I am ignoring the guages and everything else. I am filling up to the brim, driving about 300ish miles, then seeing how much fuel it takes to replace what was driven out. This is accurate in my book.

I filled the tank, I drove 319 miles. It took 41.42 litres to fill to brim. Therefore 41.42 litres divided by 4.54 (litres to gallons) = 9.12 gallons. 319 driven miles div by 9.12 gallons = 34.9. Making 34.9 miles per gallon. I am still so very very disappointed.

Does anyone know how to get out of a PCP?  :'(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Bob1958 on May 18, 2010, 06:38:43 PM


Does anyone know how to get out of a PCP?  :'(
P/X........

First off get an early settlement from the finance company, this will tell you what's owed on the car.

Then go to a garage and ask for a P/X against the car you want.

Whether you will need to put extra cash in or not depends on how much deposit was put down when you took the PCP out, how long the PCP has been running and of course, the car you are buying.

So, if the PCP has only been running 6 months and a small deposit was paid, the car will still have negative equity, a garage will never give you the early settlement figure as their P/X price, you'll have to top up their P/X price to pay what's owed on the car.

If you paid a big deposit you may get away with paying nothing.

At the end of the day you stand to lose, but you get out of the agreement.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 18, 2010, 08:11:29 PM
quite happy with my self today, did a run into work sitting at 65-70 in the slow lane all the way and managed a massive 46 mpg, i will admit i was very impressed
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: RX8 Loon on May 18, 2010, 09:18:20 PM
First tank gave me 41.3 mpg, computer said 43.2 mpg. Well pleased with that as it was nearly all 12-15 mile trips. ;D

Gone are the days of 21mpg ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 18, 2010, 09:28:11 PM
hmmm... 21mpg i used to get less from my 1.6 when i drove like a mad man :P!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on May 19, 2010, 08:14:39 AM
quite happy with my self today, did a run into work sitting at 65-70 in the slow lane all the way and managed a massive 46 mpg, i will admit i was very impressed

Can't see you maintaing those figures for long! ;) :D ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: philip51 on May 19, 2010, 05:50:16 PM
Interesting as yes, the low fuel light does seem to come on a bit early. In fact mine came on at the point I refuelled and the display reckoned I could go another 24 miles.

I am ignoring the guages and everything else. I am filling up to the brim, driving about 300ish miles, then seeing how much fuel it takes to replace what was driven out. This is accurate in my book.

I filled the tank, I drove 319 miles. It took 41.42 litres to fill to brim. Therefore 41.42 litres divided by 4.54 (litres to gallons) = 9.12 gallons. 319 driven miles div by 9.12 gallons = 34.9. Making 34.9 miles per gallon. I am still so very very disappointed.

Does anyone know how to get out of a PCP?  :'(

Is 35mpg not good from a 3 Sport?  Isn't that the 2 litre....I'm pretty happy with that mpg figure from 1.6!  On a separate note, I used to own a Golf GTTDI...I used to get 500 miles from  a tank of diesel, but it's all academic, as the b*****d broke down and cost me 3.5k euro in repairs (3 new injectors, and replaced camshafts by dealer)...it was a 7 year old car!  Regardless of mpg, there's a lot to be said for a car you can rely on to start in the morning, and not let you down...I'm very happy with my Mazda Touring 1.6  :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: RX8 Loon on May 19, 2010, 06:17:14 PM
Making 34.9 miles per gallon. I am still so very very disappointed.

Does anyone know how to get out of a PCP?  :'(

Are you selling based on mpg being lower than expectation? Seems a bit severe. My new car has a combined quoted figure of c50mpg, I reckoned on getting 45ish at best, the mpg's quoted by the manufacturer will always be considerably higher than reality as their test conditions will be geared to get the best figures.

At the end of the day the difference between 35mpg and 40mpg is only about £7 per tank. Suppose if you are going through a tank a day that could be substantial, but if you are talking a week or so it's not an awful lot of difference.

My RX8 could get 28mpg on a longer eco run or about 23mpg on a longer spirited drive, for the sake of a few quid the latter was my preferred option  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: philip51 on May 19, 2010, 07:33:16 PM
Making 34.9 miles per gallon. I am still so very very disappointed.

Does anyone know how to get out of a PCP?  :'(

Are you selling based on mpg being lower than expectation? Seems a bit severe. My new car has a combined quoted figure of c50mpg, I reckoned on getting 45ish at best, the mpg's quoted by the manufacturer will always be considerably higher than reality as their test conditions will be geared to get the best figures.

At the end of the day the difference between 35mpg and 40mpg is only about £7 per tank. Suppose if you are going through a tank a day that could be substantial, but if you are talking a week or so it's not an awful lot of difference.

My RX8 could get 28mpg on a longer eco run or about 23mpg on a longer spirited drive, for the sake of a few quid the latter was my preferred option  ;D

Lol, I don't have an RX8, but I know what you're saying...I'd rather sacrifice the few mpg's and enjoy driving the car instead of being afraid to trod on the accelarator...having said that, maybe that's what knackered my Golf!

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 19, 2010, 08:28:32 PM
as long as u look after the car you shouldnt have any problems flooring it, just dont do it from cold!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: philip51 on May 19, 2010, 09:46:24 PM
as long as u look after the car you shouldnt have any problems flooring it, just dont do it from cold!

That's true Sammy...I do wait for it to warm up on the Mazda, but in the Golf I didn't because it takes about half an hour for a diesel engine to warm up!

Very happy with the Mazda though...first new car I've ever owned..
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 19, 2010, 10:04:47 PM
that would be why, deisels really need to  be warm due to them having a higher compression ratio than petrols
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: TheRammo on May 19, 2010, 10:56:38 PM
I try not to think about the mpg too much.  I recently traded a 2.0 diesel 4 door saloon (lots of mpg) for a mk2 MPS and if I start worrying about the mpg, I'll regret what I've done!

At least my other half worrying about mpg will distract her from the £500 tax disc bill coming next April  :o

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 19, 2010, 11:09:31 PM
haha what 500 tax bill...... ;) no such thing... at this point in time any ways :P!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: philip51 on May 20, 2010, 01:20:43 PM
haha what 500 tax bill...... ;) no such thing... at this point in time any ways :P!

I'd love to get an MPS, but the Irish government have made it impossible....I was wondering why it was so cheap to buy a '08 MPS over here...the reason is it costs 2100 euro for the motor tax for the year under the new carbon rating etc!  We're being screwed over here  :(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: TheRammo on May 21, 2010, 10:06:41 PM
haha what 500 tax bill...... ;) no such thing... at this point in time any ways :P!

Just checked DVLA - First year only tax disc for a mk2 MPS is £550.  Next year it drops to just £235, assuming no increase which is unlikely!

Phew!

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 21, 2010, 10:12:00 PM
haha what 500 tax bill...... ;) no such thing... at this point in time any ways :P!

I'd love to get an MPS, but the Irish government have made it impossible....I was wondering why it was so cheap to buy a '08 MPS over here...the reason is it costs 2100 euro for the motor tax for the year under the new carbon rating etc!  We're being screwed over here  :(

i was speaking to a customer the other day who said the same thing about the tax and i didnt belive him... guess ive just been proven wrong...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: philip51 on May 22, 2010, 12:59:25 AM
haha what 500 tax bill...... ;) no such thing... at this point in time any ways :P!

Just checked DVLA - First year only tax disc for a mk2 MPS is £550.  Next year it drops to just £235, assuming no increase which is unlikely!

Phew!



That's it...I'm movin to the UK!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: rabster on May 28, 2010, 12:28:06 PM
Thought I'd update the figures I gave earlier having now done some journeys of 400 mile. Different routes, A313, M3, M25, M40, M6(toll), M74 and A702 401 miles 31 litres from the pump MPG of 58.5  Then same start and stop points Route of A313, M3, M25, A1, A68, A72 400 miles 29 litres at the pump 62.3 MPG.

New Mazda 3 1.6D TS averaging 54MPG all in. £30 a year tax as well can't beat it.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: aldon on May 28, 2010, 05:49:12 PM
Well, after my initial confusion mixing up the silly consumption readings on the computer, I'm really happy with my consumption.

35 to 40 mpg 8 mile round trip to work and back every day mixture of village and country roads.

It's a 2 litre 3 btw, and I just drive it normally.

With reference to the smaller engines, there is a fallacy about them being more economical. Mazda 3 isn't exactly a small car for a 1.6 especially with aircon on. For example I had a 1.4L Renault scenic and it would simply not go unless I gave it some. Moved onto a 2.5L V6 MG ZS and that was actually cheaper to run on a normal drive. It didn't need to be revved to keep up with traffic did 70 mph at 3K revs.

And for some strange reason Mazda has the gearing way too high, the 2L could easily manage 70 at less than 3K revs but it sits there at 3.5K.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Pakolainen on July 12, 2010, 07:06:27 AM
Car: 2010 3, 1.6 TD. 1200km on the clock.
Cost of diesel: 1.129€/L
Cost to fill up tank: 1st time 46.38€ / 2nd time 50.15€
Km driven from 1st tank : 1097km
Km/L = 41L
1097/ 41 = 26.8 km/l = 107.2km to the gallon
In mpg that's 67

Sounds wrong but that's what it is.
Tripometer reads 5.1l to 100km
Haven't finished the 2nd tank yet.
That is mainly urban driving with 2*250km blasts on the motorway with cruise control.

Happy as parry.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on July 12, 2010, 11:15:56 AM
(http://i79.photobucket.com/albums/j124/willpower128/Emos/Hummmmm.gif)

Something just doesn't seem right there. How many litres did you actually buy when you filled up for the second tank ?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: David on July 17, 2010, 08:32:08 PM
Hi. I've had my Mazda 3 Takara 1.6 auto for around 11000 miles now and I've been feeling the fuel consumption is a bit heavy.  I had the pre-facelift model 1.6 auto and it seemed much better on fuel.  I tested this one yesterday on a run to Carlisle and back.  I brimmed the tank and drove at a steady 70 with minimum throttle opening, you know, long run type driving.  The tank was virtually dry at 294 miles which equates to 24.29 mpg.  I am shocked and concerned.  Should I take the car back to the dealer and complain?  Can he do anything or is it a bad engine design?  Why did they change from the old engine if it was this much better (used to easily get 35+ to the gallon)?

If the new one is the same, I think I''ll be moving away from Mazda for my next car as 24mpg frpm a 1.6 is ludicrously bad.  Any suggestions regarding this?

Thanks
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on July 17, 2010, 09:10:33 PM
I can only think that is to do with it being an automatic ! I have a'58 plate 1.6 Takara (saloon) and I get an average 34.5 mpg (and around 40 on a long run with no urban driving). Are you topping up the tank again to obtain your consumption figure, as there is over a gallon left in the tank when the trip recorder says there is none left.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: David on July 17, 2010, 09:45:04 PM
I'm going on the fuel gauge after the low fuel light comes on I drove it down to the empty mark.  When I refilled the tank it was about 52 litres so on that basis the mpg comes to just over 25mpg.  Even so, thats 10mpg down on my last 1.6 auto.  Thats about £5 per tank I'm losing compared to my old car.  I even was running on full load tyre inflation....  so much for that helping.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on July 17, 2010, 09:48:14 PM
did you buy a used car?! if so then the auto is called the activematic for a reason, it learns the way you drive, so say the old owner thrashed it, then it will still remeber that to this date, even if it has changed to your personal style, but it may mean that it still changes gear later and higher in the revs, hence burning more fuel, it may also mean that it down shifts earlyer again letting the revs biuld, or vice versa, if the old owner drove it very slowly and let the engine labor all the time i.e 4th gear at 30 etc etc then that will be in its memory meaning that more fuel is used yet again...

hope this helps a little...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: David on July 17, 2010, 10:56:05 PM
Cheers mate.  Worth a try but no....  bought brand spanking new.  Had to wait for it to come from a giant car park in the Netherlands I think...

I just drive as I've always driven my Mazda automatics....  if anything I'm even more circumspect now as fewer funds are available for petrol.  I love the car though.  Maybe the engine mapping is crap.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on July 17, 2010, 11:04:50 PM
that would be nordy, its where all new mazdas are stored for europe befor they are sold/ordered in..

and ohh new.. odd, befor you did the economy test you werent driving the car hard were you?! because once again that can have the same effect?!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on July 18, 2010, 02:17:33 PM
I've just been to top up, and ignoring the difference between the level the petrol reached in the filler pipe last time, and the slightly lower level this time ( less than half a tea cup) I used  48.29 ltrs & got 35.3 MPG over 375 miles. That would leave a theoretical 6.71 litres in the tank. (theoretical because I've filled the tank AND the filler pipe).
According to the trip recorder my average consumption is 34.7 now, but over the last 3 tank-fulls I've actually averaged just over 35 mpg.   
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on July 18, 2010, 02:21:00 PM
thats pritty good to be fair, im on an average of 33mpg and 49mph so im not doing to bad imo!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on July 18, 2010, 02:41:47 PM
I have never previously bothered but there was redex injector cleaner on offer at Costco so I bought a box, 16 "treatments" worth for £12. Worth a try for £3 and no doubt I can shift the 3 other bottles and get my money back if it does nothing but I have to say that I think its helped.

I've been nursing 38-39 mpg out of the car on my usual driving and sometimes a bit more on longer trips but this tank I've done an indicated 41+ mpg by the trip computer which is quite an improvement. I know its tricky comparing one tank tot he next, differnet weather, temperatures, traffic levels, journey length etc but I really do think its making a diference. Especially as its Asda petrol I've been using recently which I've never really rated as 'good' petrol.

Acording to my phone, I'm averaging 37.5mpg since last november which considering the exremely cold winter is a rather good figure and much better than I was getting in the first few years of running the car especially as I'm running the standard paper filter, not my k&n. IT certainly seems like time and miles is seeing much improvement. My 1.6 has now done 52.5k miles.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tomatoe on September 23, 2010, 08:29:56 PM
2.2 Mazda 3 diesel only had it for a week but getting 36.5 mpg. Not sure whether that's good or bad
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rich196 on September 24, 2010, 12:11:02 PM
2.2 Mazda 3 diesel only had it for a week but getting 36.5 mpg. Not sure whether that's good or bad

Its about the same as i get out my 54 petrol sport
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Madaz3 on September 24, 2010, 12:53:24 PM
2.2 Mazda 3 diesel only had it for a week but getting 36.5 mpg. Not sure whether that's good or bad

Really? wow - that sounds poor - what sort of driving is that?

(I have averaged 30mpg out of my MPS so far this year - lots of dual carriage way commuting mind you)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tomatoe on September 24, 2010, 11:02:50 PM
City driving like. What wud u say was average? X x
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on September 24, 2010, 11:58:54 PM
http://www.mazda.com/csr/download/pdf/2004/e200414.pdf (http://www.mazda.com/csr/download/pdf/2004/e200414.pdf)

It would be nice to know what 'low to medium' equates to. I know Honda's current 1.8 Vtec uses a Wide Open Throttle on a cruise as do BMW's valvetronic petrols. Makes a big difference to MPG and CO2 (42 MPG vs 30 MPG), in my mind one of the (few) down sides to owning a Mazda MK I.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Bazza on September 25, 2010, 09:58:11 AM
Just completed 400 miles on new Mazda 3 Takuya with very conservative long run driving - 37mpg! Driven more like an avergee driver I reckon this would be around 35mpg. Which survey said car good buy but fuel economy poor based on owners feedback over 3 years. This is a brand new design VVTI 1.6L engine. My 2 Honda Civics 1.6L averaged 42mpg and even my old 158bhp VTI got 35mpg.

I would not have bought one if I'd known that the economy was that poor. I don't know whether Mazda realise that economy is high on the priority list. Does anyone know if they are working on a revised engine mapping arrangement as they surely must be able to squeeze another 10% on fuel economy.

I won't be recommending this car to anyone until they do so and will change car as soon as possible - sad!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on September 25, 2010, 10:53:49 AM
Just completed 400 miles on new Mazda 3 Takuya with very conservative long run driving - 37mpg! Driven more like an avergee driver I reckon this would be around 35mpg. Which survey said car good buy but fuel economy poor based on owners feedback over 3 years. This is a brand new design VVTI 1.6L engine. My 2 Honda Civics 1.6L averaged 42mpg and even my old 158bhp VTI got 35mpg.

I would not have bought one if I'd known that the economy was that poor. I don't know whether Mazda realise that economy is high on the priority list. Does anyone know if they are working on a revised engine mapping arrangement as they surely must be able to squeeze another 10% on fuel economy.

I won't be recommending this car to anyone until they do so and will change car as soon as possible - sad!

Your not going to get decent economy\performance on a new car with 400 miles on it. The engine is making a lot of friction and has to 'run in'. It will take about 6,000 miles on a petrol before you can judge its economy.

Also, use 95 octane fuel (though not supermarket) as these superfuels can make economy worse on 'normal' non performance cars.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: stumpy on September 25, 2010, 11:08:24 AM
Just going by the trip computer i'm getting about 31mpg.
The car is a 57 plate 1.6ts2 but not really used a great deal, just the odd school trip and general pottering about town.
Have thought about putting some hotter spark plugs in the car as the average trip is about 3 to 4 mile, all stop,start really.
Know a little more on economy i suppose when i've done a couple of brim to brim calculations.
My A4 Avant used to get about 28mpg doing the same type of trips and that was a 2ltr turbo with 200bhp.
Like the 3,but jeez don't you have to sort some interior trim rattles out :o
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on September 25, 2010, 04:11:56 PM
Just going by the trip computer i'm getting about 31mpg.
The car is a 57 plate 1.6ts2 but not really used a great deal, just the odd school trip and general pottering about town.
Have thought about putting some hotter spark plugs in the car as the average trip is about 3 to 4 mile, all stop,start really.
Know a little more on economy i suppose when i've done a couple of brim to brim calculations.
My A4 Avant used to get about 28mpg doing the same type of trips and that was a 2ltr turbo with 200bhp.
Like the 3,but jeez don't you have to sort some interior trim rattles out :o

We get 31mpg out of our 3 too.. still running it in though
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on September 25, 2010, 04:22:09 PM
Just completed 400 miles on new Mazda 3 Takuya with very conservative long run driving - 37mpg! Driven more like an avergee driver I reckon this would be around 35mpg. Which survey said car good buy but fuel economy poor based on owners feedback over 3 years. This is a brand new design VVTI 1.6L engine. My 2 Honda Civics 1.6L averaged 42mpg and even my old 158bhp VTI got 35mpg.

I would not have bought one if I'd known that the economy was that poor. I don't know whether Mazda realise that economy is high on the priority list. Does anyone know if they are working on a revised engine mapping arrangement as they surely must be able to squeeze another 10% on fuel economy.

I won't be recommending this car to anyone until they do so and will change car as soon as possible - sad!

Mazda Sky Engines (http://www.motorauthority.com/blog/1035852_mazda-previews-sky-family-of-next-generation-engines)

These are the next gen of Mazda engines.
Shame they haven't went the route of smaller engines with super and or turbochargers.

Will possibly stop me buying a Mazda when we finish with the new one.

Apparently the aim is for a 30% gain in fuel economy by 2015,unfortunately, by 2015 they will be 5 years behind all the other companies.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on September 26, 2010, 09:09:20 AM
Just completed 400 miles on new Mazda 3 Takuya with very conservative long run driving - 37mpg! Driven more like an avergee driver I reckon this would be around 35mpg. Which survey said car good buy but fuel economy poor based on owners feedback over 3 years. This is a brand new design VVTI 1.6L engine. My 2 Honda Civics 1.6L averaged 42mpg and even my old 158bhp VTI got 35mpg.

I would not have bought one if I'd known that the economy was that poor. I don't know whether Mazda realise that economy is high on the priority list. Does anyone know if they are working on a revised engine mapping arrangement as they surely must be able to squeeze another 10% on fuel economy.

I won't be recommending this car to anyone until they do so and will change car as soon as possible - sad!
I don't think its that new a design, as far as I know its not wildly different from the 1.6 in the mk1. 35mpg sounds sort of right. Its not brilliant and I did expect it to be better when I bought my mk1 but there's not a lot you can do about it now.

It will take a bit of time to run but I didn't see any major improvement over time so you need to drive like a saint to get really economy improvements and that includes keeping below 70 on the motorway. One thing I found that helped was changing the air filter for a K&N type. This seemed to make an improvement if I was spending time in stop/go, low speed traffic but I didn't try that till a couple of years after buying the car. I don't know if I would change it so early whilst the engine was still running in.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: rincey on October 25, 2010, 01:17:18 PM
My trip is telling me:

Round town, 31.2mpg
Motorway, 39-41mpg

The round town bit is based on quite a bit of stop start traffic, some open 30mph stretches for like half a mile and 6.5 miles in total. If the trip is correct, then I am most impressed!

The motorway run is sat at 75mph with my little lad in the car, so would never rush then.

All in all, I am very happy with that :)

However, fuel drops very quickly when you press the loud pedal ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Slider on October 25, 2010, 08:52:34 PM
first couple of tankfulls on my 1.6 TD are showing 52.6 on the OBC and measuring 51.5 "brim to brim" calculation.

Pretty happy with that for a car with only 1000 miles on the clock.  Daily commute is over hill roads  so never gonna get thebest mpg. Last car - BMW 118D averaged 46.4 and the Ocrtavia before that much the same.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Kennedy on November 03, 2010, 09:33:38 AM
Been through my first tank in my 2006 sport saloon, with mixed driving i worked it out at 30.8mpg or so, I do a decent bit of stop/start round town stuff so its not too bad!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: aerial on November 04, 2010, 06:59:31 PM
Has anyone tested different brands of petrol.  Are the supermarkets better or worse for fuel consumption figures?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on November 05, 2010, 11:41:29 AM
Has anyone tested different brands of petrol.  Are the supermarkets better or worse for fuel consumption figures?

I only use shell....

If its the same RON rating I'd assume it's the same economy.
I try to only use shell - the brand petrols have additives in the m that are supposedly good for the engine; the supermarket ones don't AFAIK.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: cwilliams255 on November 05, 2010, 11:58:34 AM
I always get slightly less MPG with Tesco diesel than Morrisons which again is less than Shell. Rather gutted they knocked down my local shell
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Duc de Pommfrit on November 05, 2010, 12:39:29 PM
Has anyone tested different brands of petrol.  Are the supermarkets better or worse for fuel consumption figures?

For a year I only used Sainsbury but for my last 5 fills I have used BP and I think the car does run better, could all be in my mind!!!!!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on November 24, 2010, 04:27:49 AM
had my mps for 6 mths now, done about 5k miles in it, recently i've been doing 28.5mpg, and the spec says that combined mpg is 29.4mpg so i'm rather  :D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on November 25, 2010, 09:30:08 PM
Has anyone tested different brands of petrol.  Are the supermarkets better or worse for fuel consumption figures?

For a year I only used Sainsbury but for my last 5 fills I have used BP and I think the car does run better, could all be in my mind!!!!!

I use BP and now and again use Shell - the fuel save (both 95 standard RON). My thinking being that different "detergent packages" might clean in different ways, variety might be better.

I've said it before but I think the biggest fuel stopper on the 3 is the schedule for the air filter - replace every 3 years!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andytakara on January 26, 2011, 12:00:24 PM
We are due to get our Mazda 3 at the end of the week, and I wish that I had joined this forum earlier. Fuel economy was one of my reasons for buying the Mazda - I had heard that they do around 40 MPG. However, if they are only doing around 35 MPG, then that is worse than my 1.8 Mondeo petrol, with 115K miles on it! Ever since we have had the Mondeo, six years ago, it has averaged 38 MPG (currently £60 for 400 miles), and we have done as much as 550 miles on a tankful over in France.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on January 26, 2011, 05:37:09 PM
I've got a 1.6 '58 Takara . I'm afaid that 35 mpg is about the best you can hope for. You will get more on a long cruise at 70, but in the real world (combined urban & motorway) 35 is about it.  ( and less once you get over 75mph)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Witless_Steve on January 26, 2011, 06:14:04 PM
When I bought mine I have to admit that fuel economy was way down my list of priorities.
I figured I'd be spending a lot of time on the road and I'd get something that made me smile everytime I got into it.
Over a year later I still get a kick out of starting mine. Drop the foot and she'll overtake nicely which is a handy thing when overtaking on a country road. If I drive with a light foot it rolls along nicely with barely a sound just the gentle sound of the odometre clocking up the miles.
I don't know how you guys with the MPS still have a license the temptation to kick it into gear and make the engine sing would be unbearable for me.
If economy is the main thing I'd think of getting the diesel Mazda and see if that fits your needs better.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andytakara on January 26, 2011, 11:57:45 PM
Thanks guys, probably not what I wanted to hear, but I will see how I get on with it. I agree with Steve about the MPS, if you have a car like that then the licence must be at risk every time you go for a drive :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on January 27, 2011, 12:10:43 AM

I don't know how you guys with the MPS still have a license the temptation to kick it into gear and make the engine sing would be unbearable for me.

personally i'm pretty chilled when driving mine, but i do like to enjoy the accelaration - within the boundaries of the law of course - i do deliveries in a van most days, so i hare around a bit in that instead - within reason and the law of course
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on January 27, 2011, 09:23:23 PM
We're currently at 6200 miles and 30.6 mpg in a 1.6 petrol... been driving like a saint lately, as the economy is terrible
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: RX8 Loon on January 28, 2011, 06:57:50 PM
2.2d 150ps

250 mile round trip today and 49mpg, sitting at steady 75mph most of the way (one passive regen' on the way, but it didn't last long). Averaging just below 44mpg over 8.5k miles, well pleased with that.

If you had the patience to sit at 60mph I'm sure mid 50's would be possible, not that I'm going to be trying that out ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on January 28, 2011, 08:06:22 PM
1.6 Sport

21000 miles to date and averaging 37mpg during this winter, but 40mpg during last summer so not too unhappy.  :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on January 29, 2011, 08:26:10 PM
1.6 Sport

21000 miles to date and averaging 37mpg during this winter, but 40mpg during last summer so not too unhappy.  :)

I can only dream... is it a diesel?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on January 29, 2011, 10:19:26 PM
1.6 Sport

21000 miles to date and averaging 37mpg during this winter, but 40mpg during last summer so not too unhappy.  :)

I can only dream... is it a diesel?

No it's a 1.6 petrol
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Pilot Mariner on January 30, 2011, 04:48:17 PM
In the 6 months I have had my new generation 1.6 TS2, the indicated average peaked at 39.6mpg for a few months, but has now dropped to 37.6 during the winter. Mostly urban driving to work, a distance of 7 miles each way.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ross27 on January 30, 2011, 05:37:48 PM
When i first got my 2.0 Sport, i was used to driving a diesel, with low revs, so my MPG was averaging about 34 motorways and town.

Now im used to the car and the rev range, im averaging more like 26  :) To be fair though, im doing about 200miles less a week now, and my driving is mainly all town.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on January 31, 2011, 11:18:09 PM
In the 6 months I have had my new generation 1.6 TS2, the indicated average peaked at 39.6mpg for a few months, but has now dropped to 37.6 during the winter. Mostly urban driving to work, a distance of 7 miles each way.

How many miles do you have on the clock?

We're at 6500ish and averaging 30.6mpg...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on January 31, 2011, 11:18:37 PM
1.6 Sport

21000 miles to date and averaging 37mpg during this winter, but 40mpg during last summer so not too unhappy.  :)

I can only dream... is it a diesel?

No it's a 1.6 petrol

Do  you pay people to push? I can only dream of that economy
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bignose1972 on February 02, 2011, 10:28:40 PM
I've got the 1.6 petrol with 26K on the clock.

I've just started a daily commute of 50miles each way of A and B roads. Leaving home at 6am the roads have been quiet and i decided to do a little experiment to see what best MPG i could get by keeping below 65mph and with the air con turned off.

I did 420 miles then filled up the tank with 44 litres - that equals 43mpg which i'm very happy with. I normally get to about 380 miles before the fuel light comes on with normal driving at speeds upto 80mph. I now always use non-supermarket 95 ron fuel.

All in all i'm happy with the MPG of the 1.6 petrol though it has improved since we brought the car new in Oct 08.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bigmick on February 03, 2011, 02:27:04 PM
TS2 1.6D - 10 plate - 21000 on the clock nearly

I have only watched the trip computer and not done tank to tank test yet - but perhaps I should.

I have been regularly get 55+ from a tank.  I travel from Surrey to East London each day for work so mainly M25 and A2 but a little rural first and town at the end though I do travel very early in the morning so no traffic to stop me and the leave prior to afternoon rush hour too.

Was getting 63.1 after two days last week and the tank finished on Tuesday this week with an average of 61.8.

A single journey home on Tuesday reported 71.1 !!!! after one journey up this morning it is reading 68.1

I am trying to drive economically as I am finding it a challenge now to see what I can get out of a tank - so be beware - you don't want to get stuck behind me on the M25 or A2   :)


M
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Beanus on February 19, 2011, 07:15:44 PM
 I have the TS2 D on a 60 plate. Its done 5k and i am up to 52 mpg, at least according to the display. Quite pleased with that. What suprises me is that i can drive it down to 3 or 4 miles left in the tank, according to the display, but can only squeeze in 44 litres in from the pump !. I believe it to be a 50 litre tank. So that estimated mileage i get after i have filled up would be spot on, if i could only ignore that tank empty warning light !
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Russ24v on February 21, 2011, 09:24:59 PM
I've had the 2.2d sport 185 saloon for just under a year now, display reckons 49.7; iPhone app nearer 48.1 so quite happy with that, but most milage is motorway during rush hour.  Lowest was 40.4 going to France, 3 up, bikes on roof and loads of clobber. Little short of my previous 150d Vectra, but miles more smiles especially down B-roads  :D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Brow on February 24, 2011, 12:47:05 PM
On Monday I put in my 2nd tank of Diesel in my 57 plate 2.0D Sport and these are my figures so far:

Just over 2 weeks ago (when I got the car) I brimmed the tank and the trip said 518 miles to go.

The consumption on average (according to the trip) went between 38MPG at lowest and 52 MPG at highest. This is with mainly early morning higher speed motorway/Fast A road driving (13 miles each way to work) plus other shorter bits in the evenings and at weekends. As I only got about 28MPG at best in my ST170, this is quite an improvement :)

When I filled the car up I'd done about 350 miles, and the trip computer said I had 17 miles left in the tank. It only let me put 43 litres of fuel into the 55 litre tank, so I'm assuming the 17 miles left in tank reading is being very overly cautious?

I know 350miles from the tank isn't great, but it's my 1st diesel car and I'm hoping now that my driving style is changing to suit the car, that this will improve.

Anyways, I only used to get around 230miles from my old ST170 and that was with Super Unleaded, so the extra mileage in the Mazda was cheaper than in my old car  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: cwilliams255 on March 09, 2011, 02:06:54 PM
It only let me put 43 litres of fuel into the 55 litre tank, so I'm assuming the 17 miles left in tank reading is being very overly cautious?

I think all Mazdas are cautious in this respect. I've run my 2.2D for 15-20 miles when the trip was saying 0 miles to empty and at most I've managed to put 48 litres into the 55 litre tank
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on March 14, 2011, 02:32:33 AM
for a long time now i've been getting 28.4mpg (according to the car) thats in my typical 1 hour spent on A roads & 30min around town kind of journey

these last few times i've used the car, i've been getting 30mpg, thats the same proportion of road types, only these couple of times its been late at night, so no traffic in town (so very smooth easy driving) and also i've been more or less on the speed limit on A roads, but flooring it somewhat when i get on to them from roundabouts
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: IvyIIV on March 14, 2011, 02:17:52 PM
I have just done my first long journey in my 2.0 ltr sport (05 reg).  I was surprised by the economy reading shown by the obc so was very glad I did a full brim fill up at the same petrol station and pump pre and post trip.  Car has done 48,000 miles and the only modification is a K and N panel air filter.  2 adults + luggage, journey was on A roads and motorway with no hold ups.

Car
miles = 317.5
remaining = 153 mile
ave mph = 57
poss. total = 470.5 miles
econ. = 9.7ltr/100mile (1gallon = 4.546ltr, 9.7/4.546 = 2.134 gallons per 100miles)
econ. = 46.86 mpg

petrol station
brim to brim fill up = 32.6 litres

317.5 miles/32.6 litres = 9.739
econ. = 9.739ltr/100 mile (1gallon = 4.546ltr, 9.739/4.546 = 2.142 gallons per 100miles)
econ, = 46.69 mpg

Even allowing for rounding that seems too good to be true (could be the maths of course), plus the obc being nearly correct seems strange as normally at least 10% higher than actual on other cars I have had..

Any ideas or comments would be welcome.








Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on March 14, 2011, 03:01:18 PM
317.5 miles/32.6 litres = 9.739
econ. = 9.739ltr/100 mile (1gallon = 4.546ltr, 9.739/4.546 = 2.142 gallons per 100miles)
econ, = 46.69 mpg


317.5 miles using 32.6 litres = 44.28 Miles Per Gallon

Still very good
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Brow on March 21, 2011, 03:01:31 PM
I've just done brim to brim on my 57 plate 2L Diesel Sport and it came out at 38.1 MPG.

Not great, but still 10 more than I was getting from my last car  O0
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shearer27 on March 21, 2011, 04:40:53 PM
Willpower - how are you getting this mpg? I've been driving like a granny for the past month and can still only achieve an 11.5l/100m figure which equates to 39.4mpg. Mine is an 05 Sport (hatch). I am doing a mixture of town/dual carriageway driving.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shearer27 on March 21, 2011, 04:44:09 PM
Update to previous - oops sorry Willpower - I meant IvyIIV!!!!! Report: Must do better!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: The_Grouch on March 21, 2011, 05:41:26 PM
I've recently bought an 04 1.6 petrol TS2 and some careful motorway and A-road driving gave me about 470 miles until the computer said zero. Computer reads an average of 12.1 litres /100 miles but I do a mix of long journeys and sort rush hour ones. Just thought I would share the info! Can't say I'm overly impressed, my 1.8 mondeo (60 litre tank) would easily do 600 miles on one tank.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sirshorty on March 23, 2011, 07:19:08 PM
Brand new Mazda 3 1.6 Sport, 2011 Model.
115 Miles on the clock and averaging around 32MPG.

With a new car should this naturally climb a bit higher as the miles go on?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on March 23, 2011, 07:37:34 PM
Oh yes as the engine loosens up, as all new cars do less mpg when new because the engines are tight.

I get 42mpg if on motor at 75mph and 38mpg with mixed motoring. However, if you accelerate hard from standstill and after gear changes the mpg will crash to what you are currently getting I'm afraid.

Not suggesting you are, but that's what I get if I drive with shall we say enthusiasm!!

Oh and those figures have been consistant from around 2000 miles and I have 22,000 miles on the clock now.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sirshorty on March 23, 2011, 08:29:56 PM
That's brill - and what I was expecting.
As long as I can get around 40mpg then I'll be happy :)

I've been driving very very carefully at the moment for the 'wear in' period.

I've been seeing averages of around 22 whilst driving in the very early stages - really shocked me as to whether I'd got the right car or not!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sirshorty on March 24, 2011, 11:02:41 PM
400 Miles today, almost all on Motorway. Got up to around 41mpg which is a massive improvement.
Even though I had to fill up for a 3rd time in 3 days of having the car... not that impressed still :(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on March 25, 2011, 08:10:07 AM
With respect sirshorty, perhaps you should have gone for the "Diesel Engine" and not the petrol if your expectations are higher than low 40mpg at best. :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sirshorty on March 25, 2011, 08:24:22 AM
lol. If only they did a diesel sport.
I do quite like the extras of the sport... and I knew it was a decision between economy/speed and comfort/gadgets.

I chose gadgets, so maybe I'll stop moaning! :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Donnee on March 25, 2011, 08:33:47 AM
lol. If only they did a diesel sport.

they do, 2.2 in the new shape, but still a diesel :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Brow on March 25, 2011, 04:43:10 PM
lol. If only they did a diesel sport.

And a 2 litre in the old shape :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sirshorty on March 25, 2011, 07:47:55 PM
Nah - I much prefer the new shape. Definitely.

When I say Diesel Sport - I meant to say Diesel 1.6 Sport.
I was umming and erring between Diesel TS2 or Petrol Sport. Glad I went with the sport for the extra toys!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on March 26, 2011, 11:22:06 AM
Brand new Mazda 3 1.6 Sport, 2011 Model.
115 Miles on the clock and averaging around 32MPG.

With a new car should this naturally climb a bit higher as the miles go on?

I have a 1.6 sport and didn't notice a big improvement until about 6000 miles.

Google is one of the few who can get good mpg out of his 1.6. Best we've had is 37/38, but currently at 32 as I've been going to gateshead a lot lately and it is north east england's San Francisco.

I'm not a hugely aggressive driver, but you really do have to drive like a saint to get good MPG out of these mazda engines; they are notorious for poor economy.

The 3 is getting a facelift later this year and along with that they will introduce the new sky engines, which will be better.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on March 26, 2011, 01:06:25 PM
Thanks for that Anth, but I'm pretty feather footed when it comes to driving these days unless I'm on the motorway. ;D

Currently doing a fuel economy run so am driving shall we say carefully to see what the best mpg that I can get from a full tank and my read out today is 41.4 mpg after 100 miles or so of mixed "A" roads and town driving. :)

Will let you know what I achieve later in the week.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: IvyIIV on March 26, 2011, 01:52:03 PM
Hello all

In reply to shearer27: This is the best mpg I have ever got from my sport.  The car is standard apart from a K&N panel filter and I use 'normal' shell petrol.  I average high 30s on my daily commute of around 30 miles (steady driving and stop start) on A roads if driving very gently but this drops to low 30s if I drive the car how a like to.

Sorry that I can not give a definitive answer as to my mpg but I do find shell petrol better for my car than others (there are threads about different types of petrol and the pros and cons, real and psychological - but I like shell) and perhaps the K&N helps....?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on March 26, 2011, 04:02:22 PM
I always use Tesco fuel with a Ron rating of 95, have done for years and it works for me. :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: IvyIIV on March 26, 2011, 05:19:32 PM
I use the 95 ron to.  Used to use the v power but too expensive now (even with 1p off).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Neil P on March 26, 2011, 05:20:25 PM
RESULT  ;D

I have just done a 600 mile round trip from Aberdeen down to Hartlepool and most of the trip was done on the A68/A697 through the Scottish borders with the cruise control set in 6th gear at 63mph.

My average MPG on my 150 2.2D Sport 3 showed 70.2, not being totally convinced as to the accuracy of it  I had already filled right up before I left Aberdeen and then again before leaving Hartlepool and making a note of the mileage done.  Using a wee bit of that black magic thing called maths I did a calculation and got 68.9mpg so based on that I have decided that the cars computer isn't far off.

Cracking result for a bigger diesel engined car though  ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on March 26, 2011, 08:32:16 PM
Bloody fantastic Neil P and now wished I had a diesel too now :(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ant86 on April 01, 2011, 07:10:22 PM
Done my first tank in the MPS
28.4 Showing on trip computer
28.2 Actual MPG
50%Motorway 50%Town
Not sure what fuel it had in it as the Dealer filled it up, although i will only be using V-Power from now on
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: u0218835 on April 02, 2011, 12:12:13 AM
My gosh you all seem to get really good consumption in comparision to mine ... I do 30 at the best of times with my 2.0 Sport (petrol) ... I wonder if more than recommended servicing will help?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anastie on April 02, 2011, 10:56:35 AM
In the last week I have gone from the OBC showing around 34 MPG to 38 :D

Very happy and that's using the loud peddle a little to aggressively :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Data on April 02, 2011, 10:42:43 PM
Have been to Brighton and back today from my home in Oxfordshire M40/M25/M23/A23 the car has only done 1000mls. Trip average shows 53.7 mpg. Not bad for a 2.2D 185.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ant86 on April 04, 2011, 01:58:46 PM
My gosh you all seem to get really good consumption in comparision to mine ... I do 30 at the best of times with my 2.0 Sport (petrol) ... I wonder if more than recommended servicing will help?

Seems that the 2.0 Petrol is not that economical in the Mazda's. I don't think you will get much-if any improvement if you servicing it more than according to the schedule. If your oil is good and filter clean then its about as good as it gets. Less right foot might help ;). Depends really on if its town or M-way driving.

Since using V Power
Managed to get the MPS to 30.2 shown on the computer 29.9 calculated and thats not being as sensible as i should be :). I'm impressed
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: u0218835 on April 04, 2011, 02:06:50 PM
My gosh you all seem to get really good consumption in comparision to mine ... I do 30 at the best of times with my 2.0 Sport (petrol) ... I wonder if more than recommended servicing will help?

Seems that the 2.0 Petrol is not that economical in the Mazda's. I don't think you will get much-if any improvement if you servicing it more than according to the schedule. If your oil is good and filter clean then its about as good as it gets. Less right foot might help ;). Depends really on if its town or M-way driving.

Since using V Power
Managed to get the MPS to 30.2 shown on the computer 29.9 calculated and thats not being as sensible as i should be :). I'm impressed

I've heard a lot of people going on about V Power, I might give it a try for a couple of months!! ... Might not be driving at if petrol prices go up an higher lol
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on April 04, 2011, 02:15:06 PM
i had a 2 litre sport for 5 years, did the servicing at the mileasge intervals (which was sooner than the annual) my mpg was about 30mpg with maybe a bit more dual carriageway miles than urban

now i'm getting about 28/29mpg in my mps

am using Vpower in the mps now, but have never used it in the 2 litre so i don't know what difference it makes though people tell me that it s'posed to give you a bit more mpg due to it being higher ron
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Slider on April 04, 2011, 07:35:44 PM
just passed 11000 and teh economy is getting better bythe tank full.  Now at a genuine 53.3 mpg since new.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on April 06, 2011, 03:02:26 PM
Thanks for that Anth, but I'm pretty feather footed when it comes to driving these days unless I'm on the motorway. ;D

Currently doing a fuel economy run so am driving shall we say carefully to see what the best mpg that I can get from a full tank and my read out today is 41.4 mpg after 100 miles or so of mixed "A" roads and town driving. :)

Will let you know what I achieve later in the week.


Well topped up with fuel today (petrol) with 357 miles on the trip and 39.8mpg on the dash computer, but still having 69 miles still available.
 
Actually achieved 39.74mpg measured, not bad considering 70% of the mileage was on "A" roads and the remainder in town. :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on April 11, 2011, 04:10:10 PM
Thanks for that Anth, but I'm pretty feather footed when it comes to driving these days unless I'm on the motorway. ;D

Currently doing a fuel economy run so am driving shall we say carefully to see what the best mpg that I can get from a full tank and my read out today is 41.4 mpg after 100 miles or so of mixed "A" roads and town driving. :)

Will let you know what I achieve later in the week.


Well topped up with fuel today (petrol) with 357 miles on the trip and 39.8mpg on the dash computer, but still having 69 miles still available.
 
Actually achieved 39.74mpg measured, not bad considering 70% of the mileage was on "A" roads and the remainder in town. :)


I can only dream...

currently getting 34 according to the obc
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: dave.m on April 11, 2011, 04:21:28 PM
Have to say, this was one of the few disappointments I have with my 1.6 sport.It did seem a bit heavy on fuel consumption, reading a few
opinions on here seemed to confirm this.But I recently hit 7000 miles on the clock and I don't know if the engine has now loosened up a bit
but it seems to be getting better.Average MPG was showing round about 33, so recently I tried driving like a granny for a couple of weeks
and done a brim to brim check.Mainly A roads with about 30% dual carriageway/motorway which gave me 37 MPG. Is this the best I can expect ?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ckweston on April 12, 2011, 11:52:27 PM
I know its a bit of an odd place for my first post but anyway.....

We managed a steady 44 - 45mpg out of our 1.6 (petrol) Mazda 3 all the way from down here in Wiltshire up to north of Manchester (so mostly motorway)

Its not as good on petrol as my old 1.6 16v Clio or the Mrs' old 1.3 16v Swift which we could get about 50mpg but then it is a heavier car I guess....
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on April 13, 2011, 07:51:23 AM
My gosh you all seem to get really good consumption in comparision to mine ... I do 30 at the best of times with my 2.0 Sport (petrol) ... I wonder if more than recommended servicing will help?

Seems that the 2.0 Petrol is not that economical in the Mazda's. I don't think you will get much-if any improvement if you servicing it more than according to the schedule. If your oil is good and filter clean then its about as good as it gets. Less right foot might help ;). Depends really on if its town or M-way driving.

Since using V Power
Managed to get the MPS to 30.2 shown on the computer 29.9 calculated and thats not being as sensible as i should be :). I'm impressed

I've heard a lot of people going on about V Power, I might give it a try for a couple of months!! ... Might not be driving at if petrol prices go up an higher lol

Doesn't always give more power\more economy on all cars. Depends on which car you have and what ignition system it has. Made economy worse on my sport.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Madaz3 on April 13, 2011, 10:45:24 AM
"....Doesn't always give more power\more economy on all cars. Depends on which car you have and what ignition system it has. Made economy worse on my sport...."

A good point - don't bother using higher octane fuel if your car's fueling & ignition system is not set-up to use it.
(non of the non-turbo petrols are set-up for it - they are meant to be ran on 95RON)

You won't damage your engine - you're just wasting your money & you could even be getting slightly worse economy from 98RON.

My bike is 998cc & makes 160bhp - but I still just put 95 in it as that's what it's set-up to use.
I put 98 in my MPS though as it's been designed to use that.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on April 13, 2011, 01:01:11 PM
IMHO quoting the average MPG without quoting the average speed is only giving half the information.  Driving at 60 instead of 70 gives a significant saving on fuel.  Of course the average speed doesn't give a truly accurate picture of how you drive, but it helps.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Madaz3 on April 15, 2011, 10:24:40 AM
IMHO quoting the average MPG without quoting the average speed is only giving half the information.  Driving at 60 instead of 70 gives a significant saving on fuel.  Of course the average speed doesn't give a truly accurate picture of how you drive, but it helps.

LOL - that's a good point - depends on how you drive of course.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on April 15, 2011, 08:51:25 PM
I have a one month old Mazda3 TS2 with the new 1.6 diesel engine with the six speed gearbox.
I bought the car due to its good economy?
I have now completed 850 miles and the average fuel economy is only 45.0 mpg over a true 650 miles ( using top up accurate fuel measurements etc.
The car also gives what I consider a very poor bumpy, joggley ride except on the smoothest surface.
Anny comments would be appreciated.

I understand diesel fuel consumption improves with useage, but having driven Rovers, mondeos and my last car - a focus 1.8 TDS, this mazda is by far the worst performer. Even with an increased fuel consumption of 20% this figure would only increase to 54 mph, well below Masda's qouted urban consumption of about 56 mph !!!! An increase of 20% I would think is probably unrealistic evn after about 5000 miles.....

Even on very gentle acceleration, the instant fuel consumption usually dips below 10 mph in the lower gears, and has been lower than 5 - and that's with really mild acceleration.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on April 15, 2011, 11:20:37 PM
Diesel engines will not give a good mpg until they have covered in excess of 5,000 miles due to there design tolerances.
The last diesel engine car I had only achieved good mpg after covering 10,000 miles.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on April 16, 2011, 03:15:42 PM
I understand this, but I refer to my previous posting which I have modified....
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on April 16, 2011, 11:37:39 PM
Sorry bburton, but I have nothing else to offer then.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on April 16, 2011, 11:58:19 PM
Thanks for your advise - it is appreciated, I just wondered how far off the mark my current fuel consumption is ???? I appreciate what you say and agree that hopefully over the next few thousand miles there is an improvement...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Slider on April 17, 2011, 10:19:26 AM
I have a one month old Mazda3 TS2 with the new 1.6 diesel engine with the six speed gearbox.
I bought the car due to its good economy?
I have now completed 850 miles and the average fuel economy is only 45.0 mpg over a true 650 miles ( using top up accurate fuel measurements etc.
The car also gives what I consider a very poor bumpy, joggley ride except on the smoothest surface.
Anny comments would be appreciated.

I understand diesel fuel consumption improves with useage, but having driven Rovers, mondeos and my last car - a focus 1.8 TDS, this mazda is by far the worst performer. Even with an increased fuel consumption of 20% this figure would only increase to 54 mph, well below Masda's qouted urban consumption of about 56 mph !!!! An increase of 20% I would think is probably unrealistic evn after about 5000 miles.....

Even on very gentle acceleration, the instant fuel consumption usually dips below 10 mph in the lower gears, and has been lower than 5 - and that's with really mild acceleration.

My car is now 6 months old and covered 12500 mmls.  Not quite the same as yours as its the 109 bhp, 5 sp model.  True average over that time frame is now 54.8 mpg which which I am delighted with given the type of driving I do.  The consumpion has improved dramatically over the last couple of thousand miles with the last few tankfuls doing around 58/59 mpg.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on April 17, 2011, 10:14:02 PM
Thanks for that, it's nice to know that your fuel consumption is what I would expect it to be, and you are getting good figures. I suppose I just need to be patient - early days yet.  But I have to say, good mileage or bad. The Mazda3 is still a strikingly good looking car!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jinja_ninja on April 19, 2011, 09:23:28 AM
Managed to get some more accurate MPG data for my 2005 Mazda 2.0 Sport:

Recently managed to average my best MPG so far on a 100+ mile journey.

42 MPG  ;D

Not bad at all for this car... quite happy actually haha. It is a bit of a fuel guzzler. I did a steady 65/70mph on the motorway.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andytakara on May 03, 2011, 03:54:51 PM
Went to France last Monday and came back on Saturday.
On the run down at 80 --85 it averaged 32MPH and the fuel warning light came on after only 310 miles on the trip meter :o
So, I then went in to "Woos" mode, never going over 80, and the next couple of times managed 40MPG.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: tylerdurden82 on May 21, 2011, 02:00:06 PM
Hey guys,

I have a 1.6 petrol TS and driving like a granny I found I managed to get 43.5 mpg.  The fuel economy is stated by Mazda at just under 41mpg.  Now this is driven very gently which a light foot!  If I put my foot down it'll drop to late 30's in mpg.  Happy enough with that.  My drive to work consists of 30km with 20km motorway, 5km on main roads and 5km town driving.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Brow on May 21, 2011, 02:11:06 PM
I've since done another brim to brim test since getting my Rover Ron box and it's gone up by 2.2 to 42.2 MPG aswell as a nice extra dollop of power and torque  ;D

The trip computer was showing in the 48MPG range and I got 42.2. It's now showing in the low 50s, so I dunno whether to assume by the same maths I'm now getting 46ish?  ::) Not sure if it works like that or not tbh though!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Gaffy1 on May 29, 2011, 10:52:57 PM
Hi I am new to the forum.

I picked up a new Takuya in Aluminium Silver last Saturday. I love the car but I cannot get any more than 29 miles per gal average on the computer. Is this correct? Anyone else getting the same results.
Can't believe a 1.6 petrol can be this sore on fuel.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on May 29, 2011, 11:02:32 PM
The computer is not that accurate. You will be getting more than that unless there is something seriously wrong with your car. To set your mind at rest and to get an accurate mpg then you will need to do a brim to brim check. If possible continue doing this for about 3 or 4 tankfulls. Then you will know what mpg you are getting.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Donnee on May 29, 2011, 11:31:18 PM
just got round to working out how my cars been doing, suffice to say i'm pretty impressed :)

may not be accurate as i filled the tank, then half filled it a couple of times, but either way its had 65 litres in in since the clock was reset, 535 miles done which works out to about 38mpg by my reckoning

considering thats all around town mileage, back and forth to work with one quick blast out on the moors included i'm well chuffed. My old car was getting 24mpg doing the same sort of cycle

better car and cheaper petrol bills at the end of the month? me likey!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on May 30, 2011, 08:48:40 AM
Hi I am new to the forum.

I picked up a new Takuya in Aluminium Silver last Saturday. I love the car but I cannot get any more than 29 miles per gal average on the computer. Is this correct? Anyone else getting the same results.
Can't believe a 1.6 petrol can be this sore on fuel.
I can believe it but wouldn't want to drive like that all the time ;)

Give it time (its new), a few miles and a few brim to brim calcs
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Gaffy1 on May 30, 2011, 08:56:42 PM
Hi thanks for the replys
Reset the computer today(hadn't reset since I picked up) and took the car for a 80 mile run computer now showing 40 to 43 AMPG  :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Neil P on May 31, 2011, 06:33:03 PM
The computer is not that accurate. You will be getting more than that unless there is something seriously wrong with your car. To set your mind at rest and to get an accurate mpg then you will need to do a brim to brim check. If possible continue doing this for about 3 or 4 tankfulls. Then you will know what mpg you are getting.

Granted the computer isn't that accurate but having said that it isn't that inaccurate  ;)

Did a brim to brim check on my 2.2 150 Sport and got 68.8 mpg compared it to the trip computer which gave me 71.6 mpg, so it was quite close  :D

God bless a diesel

 ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on May 31, 2011, 08:31:44 PM
i havn't worked out my mpg myself in ages, but lately according to the car i've been fluctuating from 28.6 to 28.7 and back again, thats as interesting as it gets
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on May 31, 2011, 09:50:35 PM
my 3 has just started to average 39.4 mpg froma 1.6 so im pritty happy with that...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on June 04, 2011, 01:03:01 PM
my 3 has just started to average 39.4 mpg froma 1.6 so im pritty happy with that...

That's not possible - you drive like a maniac...

my 3 is at 36mpg max and I drive like a granny with an occasional leg spasm
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Smartie on June 04, 2011, 06:45:59 PM
My 3 (1.6 Petrol) is averaging about 33mph, and sadly the fuel range is just about hitting 300 before it says zero Despite saying I have a range of 450 when full,
Then a full fuel fill at the garage is only 42L.
So why the heck is the petrol light on so soon on a flippin 55L tank?

Crazy.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on June 05, 2011, 10:54:49 AM
Hello and welcome to the forum Smartie and the answer to your question is:-

So you don't run out of fuel by running to long with the fuel gauge on empty, the light comes on with about 15L left in the tank :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on June 05, 2011, 01:23:54 PM
If I fill my mk1 just when the fuel light comes on, I can put in 45litres. Has this happened more than once? Could be the fuel pump/station if you can only get to 42litres.

I have now put my info into fuelly where the MAzda 3 is one of the top 10 most common/popular cars  ???

(http://www.fuelly.com/sig-uk/76955.png) (http://www.fuelly.com/driver/daiking/3-4)

I need to tweak some of the figures I've imported but that looks about right.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on June 05, 2011, 01:57:11 PM
See my sig for a link to SpritMonitor with all my fuellings, I've never got more than 45 litres in.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on June 06, 2011, 10:11:40 AM
My 3 (1.6 Petrol) is averaging about 33mph, and sadly the fuel range is just about hitting 300 before it says zero Despite saying I have a range of 450 when full,
Then a full fuel fill at the garage is only 42L.
So why the heck is the petrol light on so soon on a flippin 55L tank?

Crazy.

It's a Mazda (non German thing) apparently.
The VAG cars don't pop the fuel light on until there's less in the tank.

I'd rather have the fuel light come on with less left
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on June 06, 2011, 11:10:57 AM
If I fill my mk1 just when the fuel light comes on, I can put in 45litres. Has this happened more than once? Could be the fuel pump/station if you can only get to 42litres.

I have now put my info into fuelly where the MAzda 3 is one of the top 10 most common/popular cars  ???

(http://www.fuelly.com/sig-uk/76306.png) (http://www.fuelly.com/driver/daiking/3)

I need to tweak some of the figures I've imported but that looks about right.

I've just joined this
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Jim on June 29, 2011, 10:25:34 PM
Just had my 1.6 TS2 for two months now, bought with 75,000 on the clock. I'm getting 62 to the gallon according to the computer and rough working out with a pencil it's about right. I was amazed and it doesn't seem to matter if aircon is on or off.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on June 29, 2011, 10:31:07 PM
i drove to norfolk last monday and my 3 did an impressive 39.4 mpg with an average speed of 54mph with 3 people in the car, a full tank, a boot full and the a/c on, pluss my induction kit, i was very impressed
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on June 29, 2011, 11:48:40 PM
Just had my 1.6 TS2 for two months now, bought with 75,000 on the clock. I'm getting 62 to the gallon according to the computer and rough working out with a pencil it's about right. I was amazed and it doesn't seem to matter if aircon is on or off.

That will be the auto-eco mode of the climate control, pulses the ac on and off. On hot days you'll see the mpg dive.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jamski on July 14, 2011, 09:23:52 PM
Looking at a really nice (hopefully!) TS2 auto at the weekend but now worried about the mpg with an auto.

Can anyone out there tell me what they get. Quotes 36 combined which would be fine but worried that's not realistic??

Thanks

James.

P.S mods please move if this is posted in the wrong place. :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on July 14, 2011, 10:54:57 PM
im in nottingham atm, and i drove the companys 1.6 auto up here and its averaged an impressive 40.2mpg, thats better than i get from my 1.6 manual.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on July 14, 2011, 11:01:42 PM
Looking at a really nice (hopefully!) TS2 auto at the weekend but now worried about the mpg with an auto.

Can anyone out there tell me what they get. Quotes 36 combined which would be fine but worried that's not realistic??

Thanks

James.

P.S mods please move if this is posted in the wrong place. :)

Last time I looked up the MPG data it was close to my 2.0 manual.... (that's the bad news!). The good news is that I read its a very good transmission (regular auto slushbox), smooth, intelligent.

Alternatives are the Civic with its economical but jerky robotised manual or VAG's DSG dual clutch transmission. Which is very good but has a few question marks over 'mech-tronics' reliability. BMW do very good autos if a 1 series is in your budget.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on July 14, 2011, 11:06:14 PM
the ts2 auto is a loverly car to drive, the new gear box is really smooth, im gessing it is the current mazda 3 2.0 your on about? not the older 1.6 ts2 auto?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: cwilliams255 on July 14, 2011, 11:08:17 PM
The computer is not that accurate. You will be getting more than that unless there is something seriously wrong with your car. To set your mind at rest and to get an accurate mpg then you will need to do a brim to brim check. If possible continue doing this for about 3 or 4 tankfulls. Then you will know what mpg you are getting.

Granted the computer isn't that accurate but having said that it isn't that inaccurate  ;)

Did a brim to brim check on my 2.2 150 Sport and got 68.8 mpg compared it to the trip computer which gave me 71.6 mpg, so it was quite close  :D

God bless a diesel

 ;D

Woah those are good figures - so you got about 675 miles out of a single tank!! I've just started doing brim to brim on my 2.2 185 and am only getting 44mpg!! Trip says 52mpg over the same period which is rather worrying. Whilst my journey is mainly 50/50 mway/city centre I like to pride myself on being the annoying person in front of you who slows down miles before lights just so I can approach and never get below 3rd gear so I thought it would be higher than this. Tyres are correct PSI and no crap in car I don't need. Oh and like others I've noticed the whole 0 miles left yet can get only get 45litres in thing but managed to get 48 litres of fuel into it the other day - a record for me  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on July 14, 2011, 11:12:11 PM
the ts2 auto is a loverly car to drive, the new gear box is really smooth, im gessing it is the current mazda 3 2.0 your on about? not the older 1.6 ts2 auto?

Good point, sam! I was thinking about the old 1.6 MK I auto vs my old 2.0 manual.  Please ignore my last post, sorry!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jamski on July 15, 2011, 07:36:57 AM
Thanks for the replies. It's actually a facelift mk1 we're looking at, that's the newest budget will allow. I started a new thread with that info in the title but it got merged in to here so that disappeared!

So it's a 56 plate 1.6 TS2. As I said it's the facelift with the nicer (IMO) wheels, spoiler and front fogs in ice blue.

Any more experience of the mpg would be great but think we'll go for it. As long as it's low 30's I'll be happy.

Thanks

James.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ross27 on July 15, 2011, 08:35:00 AM
Thought i might aswell comment on my MPS after having owned a 2.0 petrol Sport.

I am averaging 30MPG in the MPS during mixed driving. Very similar, if not higher than my 2.0 Sport!  ;)

Dont get me wrong, sub 20MPG averages are very achieveable when you want them to be! :D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on July 15, 2011, 09:04:05 AM
Thanks for the replies. It's actually a facelift mk1 we're looking at, that's the newest budget will allow. I started a new thread with that info in the title but it got merged in to here so that disappeared!

So it's a 56 plate 1.6 TS2. As I said it's the facelift with the nicer (IMO) wheels, spoiler and front fogs in ice blue.

Any more experience of the mpg would be great but think we'll go for it. As long as it's low 30's I'll be happy.

Thanks

James.

well like i said im driving a mk2 1.6 auto at the moment and im getting just over 40mpg so im sure u will geat near to that, ive never actually driven the mk1 auto for long enough to find out what the mpg's like.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jamski on July 15, 2011, 09:15:30 AM
Thanks everyone, very useful. Looks like you have a good forum here. :)

Have put a fully refundable holding deposit on one, so fingers crossed it's in decent condition. Have seen some shockers!  :o
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gmp81 on July 16, 2011, 02:29:17 PM
i did a trip up and down the m5 with some cross country driving at each end. it was 300 ish miles 1 way and i had the climate on auto used the cruise most of the way and got 40,4mpg at 74mph. and i have a 2.0sport 11reg. i say 74mph but in realistic terms its probably 72mph because of the percentage loss of accuracy. when i have used my private motorway in my very large field i tried 85mph and got 38mpg and thought thats really good. because my old 05reg 1.8 astra never got to 38mph at any of those speeds i have mentioned. 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: SmokeO2 on July 19, 2011, 11:55:06 AM
got 40,4mpg at 74mph. 85mph and got 38mpg

Well I've been averaging just over 31mpg! The car has been booked in today because I'm absolutely fed up with the fuel comsumption. The thing is obviously running too rich as the exhaust looks more like a diesel :(

Just spent a week driving it like a monk and still only got 34mpg out of the thing (never exceeding 2000 revs).

We'll see if they sort it out!

Graham
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on July 19, 2011, 12:00:02 PM
Thought i might aswell comment on my MPS after having owned a 2.0 petrol Sport.

I am averaging 30MPG in the MPS during mixed driving. Very similar, if not higher than my 2.0 Sport!  ;)

Dont get me wrong, sub 20MPG averages are very achieveable when you want them to be! :D

i'm the same
i'm usually 28 mpg, and i also came from the 2 litre, but before i changed i looked at the figures and thats what the numbers were telling me, so i'm satisfied that its turned out that way
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on July 19, 2011, 12:14:37 PM
got 40,4mpg at 74mph. 85mph and got 38mpg

Well I've been averaging just over 31mpg! The car has been booked in today because I'm absolutely fed up with the fuel comsumption. The thing is obviously running too rich as the exhaust looks more like a diesel :(

Just spent a week driving it like a monk and still only got 34mpg out of the thing (never exceeding 2000 revs).

We'll see if they sort it out!

Graham

My exhaust finisher is covered in sot too. I assume that your using 'regular' fuel. You car sounds in the same ball park as mine.

I do bung in some STP complete cleaner twice a year, but it never makes any difference that I can feel. The only time I got a performance improvement on my 306 XSi was when it snapped its cam belt and I got shiny new valves put in, felt like another 8+ BHP. I used loads of engine cleaning stuff in that engine.

The air filter doesn't appear to get changed very often (2 years if I recall), you might as well ask them to fit a new one or consider running a K & N (but Google the pros and cons of such a filter).

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: SmokeO2 on July 19, 2011, 01:13:42 PM

My exhaust finisher is covered in sot too. I assume that your using 'regular' fuel. You car sounds in the same ball park as mine.


Yep regular fuel. I told them I want the mapping of the engine sorted out so we'll see if I get anywhere. The car will be taken straight back again if theres no change. I'll let you know if I get anywhere  :)

Graham
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gmp81 on July 19, 2011, 06:13:26 PM
smoke02 i did say that was motor way driving and i was very careful but have done it twice now and same results. my 2mile trip to work is only doing 35mpg. and i latterly go down 1 steep hill and back up another then i am at work.

my exhaust is also very black,apart from when i get the auto sol out ;D . i thought it was just a new car thing but i must be mistaken then.   
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: SmokeO2 on July 20, 2011, 07:54:54 AM
Just got the car back from the Mazda dealer after it's service and guess what the computer says everything is perfect. I did get a little bit short with the guy trying to fob me off but basically it's like talking to a brick wall. My father was a mechanic and gone are the days when the guy looking at the car uses his brain, if the computer tells him it's O.K. he would let you drive it out of the garage with the wheels falling off.

Also I had a moan about my Sat Nav as that has played up as well (showing me about 20 metres off the road then suddenly jumping to the right position). There is still no update for the damn thing and twice now I've had to use my old Tom Tom to navigate to where I was going becuase the Mazda couldn't find it >:(

So after nearly two years of ownership I would say I love the car, hate the fuel economy, hate the Sat Nav and really hate the dealership to the point where I think it's time for a change  :'(

I think I feel better for that  :)

Graham
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Duc de Pommfrit on July 20, 2011, 08:49:09 AM
I would say I love the car, hate the fuel economy
Graham

I think that could apply to all of us  :D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on July 20, 2011, 10:54:25 AM
Just got the car back from the Mazda dealer after it's service and guess what the computer says everything is perfect. I did get a little bit short with the guy trying to fob me off but basically it's like talking to a brick wall. My father was a mechanic and gone are the days when the guy looking at the car uses his brain, if the computer tells him it's O.K. he would let you drive it out of the garage with the wheels falling off.

Also I had a moan about my Sat Nav as that has played up as well (showing me about 20 metres off the road then suddenly jumping to the right position). There is still no update for the damn thing and twice now I've had to use my old Tom Tom to navigate to where I was going becuase the Mazda couldn't find it >:(

So after nearly two years of ownership I would say I love the car, hate the fuel economy, hate the Sat Nav and really hate the dealership to the point where I think it's time for a change  :'(

I think I feel better for that  :)

Graham

A dealership can make a massive difference. My 306 was in the garage all the time but the dealership was so nice and tried really hard!

I'm not surprised, all they would have done is plugged it in and checked for fault codes. I usually ask them to check for any updates in the first few years of owning my car... but there weren't any!

Someone like Superchips might be able to remap for economy, but hardly worth the outlay of a re-map!

Is your car a MKII, I didn't know MI had a sat nav option? The MII 2.0 has a massive economy improvement on paper.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Duc de Pommfrit on July 20, 2011, 10:59:09 AM
Pop up sat nav above the centre vents on the MK1
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: leo1314 on July 22, 2011, 07:10:06 PM
hi there ive just bought a 2009 mazda 3 diesel sport with 14567 miles
which iam happy with apart from the fuel consumption i put 40 pounds worth of diesel in it and got 220 miles
which works out about 29 mpg i think.ive not been driving it fast keeping to the speed limit
would like some advice on this subject
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on July 22, 2011, 07:29:32 PM
Hi Leo welcome to the forum.

I have moved your post into the correct section. If you have a read through this topic it will help you out.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: The_Grouch on September 02, 2011, 07:28:46 PM
Right some more info for you all as I've been doing a lot of driving lately:

Computer is reading an average of 11.3 l/100miles, which I get to be 40.2 mpg. Maybe a little optimistic, after 4 brim-to-brim calculations I got:

35.2 mpg - mostly pottering around town and a bit of A roads.
39.7 mpg - mostly motorway and a-roads, about 100 miles of that with 5 people + bike rack on the back.
40.3 mpg - nearly all motorway and a-roads
42.0 mpg - nearly all motorway.

I typically get around 450 miles from a tank on a long run, and I'm a little dissapointed by this, in comparison to my previous car ('98 Mondeo 1.8 ) which would easily do 550+ miles from it 60 litre tank.

I should point out that I'm a very slow driver, so much so that I should really get my self a flat cap!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on September 02, 2011, 07:35:28 PM
If that is a petrol engine, then to be honest, those are pretty good figures. I wouldn't be too dissapointed.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: The_Grouch on September 04, 2011, 05:36:45 PM
If that is a petrol engine, then to be honest, those are pretty good figures. I wouldn't be too dissapointed.

Yeah 1.6 petrol. I agree the figures don't look too bad, I'm pretty sure its better than the mondeo around town, but on the motorway I think the low gearing is the issue. I was sure I could squeeze 600 miles from that mondeo, although I never quite managed it before I chickened out and refueled!

Computer down to 11.2l/100 miles after todays trip to leeds!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: cwilliams255 on September 04, 2011, 06:29:14 PM
Its been a while since I commented on this thread so I thought I would provide an update

Car: 2009 Mazda 3 MKII Sport 2.2D 185PS
Current Milage: ~ 48000
Trip Computer Average: 52.3 MPG
Brim to Brims (since I got a new phone ;D)

02/09 - 48.53 MPG
23/08 - 50.10 MPG
17/08 - 49.40 MPG
11/08 - 49.09 MPG
04/08 - 48.58 MPG
31/07 - 44.36 MPG
25/07 - 50.01 MPG
17/07 - 45.53 MPG
12/07 - 43.83 MPG
06/07 - 44.43 MPG
28/06 - 44.23 MPG

Average Brim to Brim: 47 MPG
Max from a single tank: 518 miles

I think since getting an app for my phone I have been trying to increase my economy slightly, I know how many miles I need by half a tank so if I don't get it I drive slightly slower. I would say my driving is 50/50 motorway and town at the moment

Wish I could get the figure that the trip says after a fill-up "fuel range: 718 miles" lol
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Humble26 on September 06, 2011, 08:10:19 AM
I'm only getting 7.8 km /100 is this usual for a 1.6 diesel
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on September 06, 2011, 12:31:44 PM
I'm only getting 7.8 km /100 is this usual for a 1.6 diesel

Assuming you mean 7.8l/100km then that's just over 36 mpg. A Google search box will do the conversion for you as long as you specify the correct units, e.g. "7.8l/100km in miles per imperial gallon".

As to whether that's a good figure depends on how you drive and how much your car is loaded (inside and out).  If you only drive on motorways like a granny with just yourself on-board then not so good.  If you drive 5-up fully loaded and with roof-boxes then it's very good.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Duc de Pommfrit on September 06, 2011, 03:57:44 PM
I have used the Shell fuel saver stuff on my last 2 fill ups and Im very happy with it,  with a heavy right foot and some very short journeys I noticed more miles from the tank.  Will try and confirm mpg.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on September 06, 2011, 04:14:58 PM
I also get the impression of a small improvement with the Shell Fuel Saver over supermarket fuel.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andyl on September 09, 2011, 01:03:38 PM
Friend of mine has just got a 185 Diesel Sport and is getting 42mpg. Having said that she is a fast driver ( heavy footed )and usually cruises about 90/95 mph when she can.
Loves the car though.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sk4tec on September 09, 2011, 05:37:27 PM
Friend of mine has just got a 185 Diesel Sport and is getting 42mpg. Having said that she is a fast driver ( heavy footed )and usually cruises about 90/95 mph when she can.
Loves the car though.

When I got to test drive a Golf diesel 'GTI' - I managed to get 36 mpg on that journey! some achievement for a diesel  :D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andytakara on September 12, 2011, 10:33:18 AM
If that is a petrol engine, then to be honest, those are pretty good figures. I wouldn't be too dissapointed.

Yeah 1.6 petrol. I agree the figures don't look too bad, I'm pretty sure its better than the mondeo around town, but on the motorway I think the low gearing is the issue. I was sure I could squeeze 600 miles from that mondeo, although I never quite managed it before I chickened out and refueled!

Computer down to 11.2l/100 miles after todays trip to leeds!

Unfortunately our 1.6 Takara has a very bad drinking habit, and is averaging around 33 MPG at the moment, on mostly motorway work (under 80 MPH). Our old Mondeo Verona 1.8 used to manage 550 miles on a tankful as well, and was quick and comfortable compared to the Mazda. The low gearing is definitely the big problem (4250 RPM at 80 MPH), and I have also noticed recently, that the rear tailpipe is a bit "sooty", which would indicate it running rich.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Madaz3 on September 12, 2011, 11:00:59 AM
33mpg from a 1.6 on mainly motorway driving - 'kin-ell thats appaling!!

According to my car (not super accurate I know) I've avaraged 31 this year out of my MPS!
A lot of that is dual carriage commuting I'll grant you but still.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andytakara on September 15, 2011, 01:35:56 PM
33mpg from a 1.6 on mainly motorway driving - 'kin-ell thats appaling!!

According to my car (not super accurate I know) I've avaraged 31 this year out of my MPS!
A lot of that is dual carriage commuting I'll grant you but still.

At least driving an MPS you have a smile on your face all the time ;)
This is just a 1.6, and the weird thing about it is, that it must be one of the best accelerating cars in 5th gear at motorway speeds ::) Like who really needs that? I would rather do the business in 4th gear and then have 5th as a long, lazy cruising gear, less than 3500 RPM at 80 would be nice.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on September 15, 2011, 02:15:12 PM
Right some more info for you all as I've been doing a lot of driving lately:

Computer is reading an average of 11.3 l/100miles, which I get to be 40.2 mpg. Maybe a little optimistic, after 4 brim-to-brim calculations I got:

35.2 mpg - mostly pottering around town and a bit of A roads.
39.7 mpg - mostly motorway and a-roads, about 100 miles of that with 5 people + bike rack on the back.
40.3 mpg - nearly all motorway and a-roads
42.0 mpg - nearly all motorway.

I typically get around 450 miles from a tank on a long run, and I'm a little dissapointed by this, in comparison to my previous car ('98 Mondeo 1.8 ) which would easily do 550+ miles from it 60 litre tank.

I should point out that I'm a very slow driver, so much so that I should really get my self a flat cap!

I thought it was per 100km? or did you convert it?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Anth on September 15, 2011, 02:27:55 PM
33mpg from a 1.6 on mainly motorway driving - 'kin-ell thats appaling!!

According to my car (not super accurate I know) I've avaraged 31 this year out of my MPS!
A lot of that is dual carriage commuting I'll grant you but still.

At least driving an MPS you have a smile on your face all the time ;)
This is just a 1.6, and the weird thing about it is, that it must be one of the best accelerating cars in 5th gear at motorway speeds ::) Like who really needs that? I would rather do the business in 4th gear and then have 5th as a long, lazy cruising gear, less than 3500 RPM at 80 would be nice.

I completely agree with the gearing in the 1.6 3.... we had this discussion a while back and it really either needs a 6th gear or the gear ratios need changed.

I can comfortably drive in 5th at 30MPH - it struggles a bit to accelerate, but it'll sit there... it's about 250rpm less than 4th too.

The car will easily accelerate in 5th at anywhere from 40mph  - 5th gear is way too long.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on January 04, 2012, 08:14:40 PM
I bought my Mazda 1.6d TS2 in March 2010. It is now 10 months old and covered nearly 11000 miles. I keep a regular check on mileage, both trip computer and brim to brim fills. Over the total mileage my car has recorded a pathetic 50.2 m.p.g. About half of this has been motorway driving, cruise control, and a true 70m.p.h.. I am a very steady driver and do not have a heavy right foot...
On 220 mile trips to Wales , motorway - 90% of way, 70 m.p.h. I have never been able to get more than 55 m.p.h..
Currently around town and general driving my car computer is showing around 37 m.p.h.. - nowhere near the quoted figure of 56 m.p.g. by Mazda. Interestingly this figure gives a true m.p.g. of around 42m.p.h. Why? because comparing car computer m.p.g and true ( brim to brim ) m.p.g. my car computer actually averages 4 to 5  m.p.g. LOWER than the true mileage....
Like many others too, when my fuei tank shows empty, there is still about 15 litres left in the tank. All in all I would say my car computer and fuel gauge are rubbish......
Also a word of warning - do not put loose change into the armrest/cup holder compartment. I noticed that I seemed to be losing money and then the RATTLING began.... At the bottom of the compartment are two small holes and you   guessed it, the money dissapears through it. Any ideas how to get the trapped money out???? Comments on the above would be appreciated.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on January 04, 2012, 08:17:04 PM
Sorry, I correct my laststatement, I bought my car in March 2011......
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: cwilliams255 on January 06, 2012, 08:15:20 AM
Why? because comparing car computer m.p.g and true ( brim to brim ) m.p.g. my car computer actually averages 4 to 5  m.p.g. LOWER than the true mileage....
Like many others too, when my fuei tank shows empty, there is still about 15 litres left in the tank. All in all I would say my car computer and fuel gauge are rubbish......

Mine is the other way round, I own a 2.2D 185 Sport and according to trip my average is 53MPG but brim to brim its more like 46MPG (average over about 40 fill-ups. My worst was 42.7MPG and best 50.5MPG

As for the fuel gauge manufacturers don't want people running out of fuel, especially in a diesel so they air on the side of caution. I've run it for about 30 miles past empty according to fuel gauge and it took 48.5 litres of fuel into its 55 litres tank
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shian on January 06, 2012, 03:02:41 PM
As for the fuel gauge manufacturers don't want people running out of fuel, especially in a diesel so they air on the side of caution. I've run it for about 30 miles past empty according to fuel gauge and it took 48.5 litres of fuel into its 55 litres tank

"err" on the side of caution, not "air"

sorry ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shearer27 on January 06, 2012, 04:18:45 PM
Humble26 - I think that someone has miscalculated your figures - I make it 58.2mpg

Divide 454 by your km figure (works for any km figure - try it) i.e. 454 ÷ 7.8km = 58.2mpg
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Silverfox on January 07, 2012, 04:35:02 PM
Well I've had the TS2 1.6D on a 2010 plate now for around 6 months and my average is 43.9 mpg which to be honest I'm a little disappointed in, My seat FR averaged 41 mpg and that had alot more power ? I live in the Yorkshire Dales so my driving is up and down hills all day so mybe thats why its so low.  :(  :(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on January 09, 2012, 03:19:44 PM
Hi CWilliams255... It is normal that the figure which your car computer gives - mpg - is higher than the true mpg which you can only get from true brim to brim fill ups. Mine is very unusual as you would really expect it to be like yours......Very much like your speedo reading which will always give you a higher reading for speed than the true speed you are actually doing......driving at 70 mph on the speedo means you are probably doing morelike 66 mph approx.. ^-^
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NewMazdaMan on January 09, 2012, 03:27:27 PM
I have a 2.0 3 and I cry at the frequency of filling :S
Quite scary but I love my car :O
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: coxy on January 22, 2012, 09:43:42 AM
hi ,
    when checking the current fuel econ readings the screen scrolls through 3 different readings is this normal?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on January 22, 2012, 10:15:11 AM
Yes it is. You should have  Average, Current and Remaining.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NewMazdaMan on January 23, 2012, 08:56:01 AM
I've had two Mazda's now, My Mazda6 2.0 TS2 Diesel and my current 2.0 Mazda3.

Both have had shocking fuel consumption rates compared to other 2L cars I've had previously.

I totally agree with the earlier posts about the gear ratios. I can happily change straight to 4th at 30mph and she will drive along happily and even pull evenly.  At 45/50 5th gear is quite happy to all the way up to whatever.

Out of interest last night I tried pulling off in second. No problem.  Third also no problem. 

Changing to 5th at 30 mph also seemed ok.  The power ratios all seem wrong to me.  half asleep this morning and was doing 25 in first before I realised.

All in all the gear ratios really do not help the fuel economy of this car at all, even if you drive super carefully like I do. (most of the time).  Mixed dual carriageway/Urban driving is costing me on average £60 for a seven day period.  Not exactly frugal in this money tight period.  Oh why oh why didn't I go for a 1.6 :O

Mike
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NewMazdaMan on January 23, 2012, 09:01:07 AM
Little update that I forgot to tag onto the end of my last post.

I probably don't have to say this to most of you guys but don't underestimate the healing powers of a good run out in the car!
Having bought mine from a garage where I know it was sitting for a least 3 months, it always felt a little sluggish to me.
With work and other commitments I hadn't had a chance to give her a real run.

Last weekend I popped some fuel additive in and took her out to Newark and back. (about a 60 mile round trip.)
After stopping for a meal in Newark and then getting back into the car the difference was clearly noticeable. 
Smoother take off, increased power and far better pull. It was certainly worth the fuel cost and it's almost like driving a different car.


I'm just saying...... :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Geordie on January 25, 2012, 10:32:44 PM
I have reset the MPG trip on my 2.0d sport this morning and around town with light traffic managed to get 62mpg over 27 mile. Is that a record? I was well surprised and well happy. :o
57 plate 2.0 d sport 22k
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Neil P on January 26, 2012, 07:46:31 PM
I have reset the MPG trip on my 2.0d sport this morning and around town with light traffic managed to get 62mpg over 27 mile. Is that a record? I was well surprised and well happy. :o
57 plate 2.0 d sport 22k

Were you pushing it Geordie  ;D

Only kidding  ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Geordie on January 26, 2012, 09:09:32 PM
Red lining it in every gear ha ha ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NewMazdaMan on March 02, 2012, 12:57:45 PM
Ok I've had the car a little longer now and have adjusted my driving style a lot in that time.

In my 2L TS2 I'm now doing 300 miles a tank with that being 80% urban 20% duel carriageway.

Is that better?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: balleballe on March 13, 2012, 11:41:09 AM
That's not bad.

My driving is around 50% motorway, 30% dual carriage way and 20% town - I get around 390 before the reserve light comes on.  It comes on after 45 litres (11 gallons) - so around 36mpg
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 13, 2012, 04:53:01 PM
Hello having just bought my car at the weekend with 25k on the clock im wondering when exactly the stated combined MPG of 44.8 for my car will kick in, is this after the car has broken in and if so what mileage will i be at when this occurs?  Ive currently used around 3 boxes on the fuel gauge and done around 60 miles in around town switching on and off barely above 40mph.  Went for a 60 mile run the day i got the car mostly over 60mph and got a reading of 33.5mpg when i came home since then ive put £10 back in and its gradually going back to around 28.9(current mpg) is this fair enough? 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: tony2b on March 13, 2012, 08:46:36 PM
That's not bad.

My driving is around 50% motorway, 30% dual carriage way and 20% town - I get around 390 before the reserve light comes on.  It comes on after 45 litres (11 gallons) - so around 36mpg

You are getting more MPG, it's 4.5 litres to the gallon that's 10 gallon = 39

I get around 41-42

 ;) Tony
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andyl on March 14, 2012, 11:32:27 AM
Combined mpg's are for the most part unachieveable in real life.

My 2005 petrol 2.0 does 35-38 mpg which is only a few mpg short of my friends 2.2 diesel,which admittedly she drives a touch fast.

My wife's BMW 320d does 7/8 mpg less than the combined official figures and her journeys are mostly dual carriage ways and fast A roads.

Her previous car,a Honda 2.2d did actually do the combined figure,in fact when it went over the 100,000 mile mark it was doing more. At a steady 75 mph it could achieve 65+ mpg. The newer model get's nowhere near this.

It's about time to change the way official figures are calculated.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 14, 2012, 03:15:42 PM
Well the good thing about the Mazda 3 is the way you can change the mpg screen to radio or cd screen so you dont look at it constantly, it drives you mad that way :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NewMazdaMan on March 15, 2012, 08:56:35 AM
Well the good thing about the Mazda 3 is the way you can change the mpg screen to radio or cd screen so you dont look at it constantly, it drives you mad that way :)

No truer word has been spoken.  The last few weeks I've been obsessed with trying to get my 2L over 30MPG with purely round town motoring.  29.9 is the best I've gotten but to be honest I'm actually pretty happy with that given the engine size.

I'd say do two MPG runs, and the be happy at what your getting and listen to the radio lol.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 15, 2012, 03:37:36 PM
Anyone tell me on average how much you should get mileage wise around town per little box on the fuel gauge? im used to a needle reading and cant get my head around these little boxes, filled up to the brim last night for £30 from half a tank and have driven around 22 miles this morning and the first little box has went out in the gauge already and thats just in around town on and off stop and going, reading around 29.5mpg on the av mpg screen. Is this normal or am i worrying way too much? :'(
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: balleballe on March 16, 2012, 07:05:20 AM
That's not bad.

My driving is around 50% motorway, 30% dual carriage way and 20% town - I get around 390 before the reserve light comes on.  It comes on after 45 litres (11 gallons) - so around 36mpg

You are getting more MPG, it's 4.5 litres to the gallon that's 10 gallon = 39

I get around 41-42


4.55 mate ;-)
 ;) Tony
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on March 16, 2012, 08:53:51 AM
Anyone tell me on average how much you should get mileage wise around town per little box on the fuel gauge? im used to a needle reading and cant get my head around these little boxes, filled up to the brim last night for £30 from half a tank and have driven around 22 miles this morning and the first little box has went out in the gauge already and thats just in around town on and off stop and going, reading around 29.5mpg on the av mpg screen. Is this normal or am i worrying way too much? :'(

Over the last 3k my avg is 35.8 mpg with mixed motoring. If I fill the tank up I get between 35/50 miles before the (as you say) the first little box disappears.
In the past when I fill up and go directly on the motorway for around 50 miles I get 40+ mpg, by the same token if I do the same and just drive around town over a few days my mpg drops alarmingly to similar mileage you are stating.
To get a good and accurate mpg reading, just put fuel in and don't adjust any of the computer readings as this could give you your mpg over a longer period.
Hope my post has helped? :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 20, 2012, 04:10:43 PM
well i went for a drive yesterday 40plus mile round trip sitting mainly at 60mph the whole time prior to setting off the av was 26.5mpg and when i returned i had got it up to around 31mpg and managed to get around 32miles before a box went on the dashboard tbh the rate they go out is alarming and expected at least 30mpg doing town running and around 34mpg going on a run especially with the mpg that is stated my mazda i did however buy a one shot bottle of green redex and so far with todays driving around town ive managed to lost .3 of a mile of mpg sitting around 29.7 so so far not goin down as quick as before.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: wurzel on March 20, 2012, 05:28:40 PM
well i went for a drive yesterday 40plus mile round trip sitting mainly at 60mph the whole time prior to setting off the av was 26.5mpg and when i returned i had got it up to around 31mpg and managed to get around 32miles before a box went on the dashboard tbh the rate they go out is alarming and expected at least 30mpg doing town running and around 34mpg going on a run especially with the mpg that is stated my mazda i did however buy a one shot bottle of green redex and so far with todays driving around town ive managed to lost .3 of a mile of mpg sitting around 29.7 so so far not goin down as quick as before.

The marks on the fuel gauge are not a very accurate way to determine fuel consumption.  On my Mk1 (which has the old needle-type), it will stay for 50miles on full before starting it's descent, so they are only there as a very rough guide.  Similarly, if you put in less than 10 litres I think - there's often no immediate response from the gauge and it creeps up slowly.  In terms of your mpg, if you started at 26.5 and ended at 31 in 40 miles, you will have been averaging high-30s minimum for those miles, I would have thought.  Even the computer is not guaranteed to be accurate - only surefire way to work out mpg is to do a brim-brim calculation using the trip yourself I'm afraid!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on March 20, 2012, 05:35:58 PM
Brim to Brim for the Win..
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 21, 2012, 03:51:56 PM
Ive done around 30 miles in around town since and have remained at average of 29mpg which isnt that bad considering its town driving on and off etc. I did however buy petrol the day i got the car from a supermarket forecourt and have since put more in from other stations and thats possibly why theres a difference this week.

Do you recommend resetting the averages for speed and mpg each time you refuel or each time you have it full to the brim or should i just leave it?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on March 21, 2012, 04:06:18 PM
You seem to be putting too much reliance on the on board MPG calculating system. As has been documented elsewhere on the forum, the Mazda MPG calculator is notoriously inaccurate. Much better to do a manual calculation Brim to Brim.

Refill to the brim. Take the mileage and note it down. When it comes to time to refuel again. Fill to brim note the amount of fuel required, take the mileage.
Calculate the difference in mileage. 
Divide the difference by the amount of fuel taken on board. (to convert from Ltrs to Galls, multiply by 0.22 ) 
Result is MPG.  Doing this over a period of time, perhaps 1 month, will give you a far more accurate indication of your consumption 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 21, 2012, 04:32:57 PM
cheers that seems to be an easier way of working out mpg, ive always relied on the onboard mpg in my old car which was a vx vectra and a needle :) going by that and filling to the brim last week and driving until she was half full according to the gauge i work out the mpg to be around 30 which is alot more than i thought i was actually getting :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on March 21, 2012, 04:40:52 PM
As has been previously said, the top half of the gauge is always slow to move. I can get over 40miles before seeing any movement. But that is not an accurate way to presume how much fuel you have used. 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 21, 2012, 04:57:23 PM
As previously stated i have boxes and not a needle and they drop on av every 20 miles in town and when on longer run around 30 miles.  im just happy to know that the 26.4 or whatever i see during the week isnt the actual mpg :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on March 21, 2012, 04:59:23 PM
My experience with the mk1 (needle gauge) is the opposite to some.

Providing I'm not trying to squeeze as much petrol as possible into the tank (i.e. 1 or 2 pump clicks) I find the needle is very progressive, although it starts above the markings and the trip computer I reset each tank is very accurate to within 1 or 2% most times.

And, for example if I get down the major markings at 100miles each time, I know I am doing almost exactly 35mpg. If I do more I'm doing well, less, not so good.

Additionally I ntoiced that the fuel light in my 1.6 petrol comes on after approx 10 gallons/45litres of petrol have been used, based upon brimming the tank each time. As I also reset the trip each time, a simple miles since last fill up divided by 10 gives me a pretty good indication of what my mpg is. Easily within 1mpg most times.

Hopefully as the weather is warming up and days lengthening my mpg will increase from 35 to closer to 38.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: cwilliams255 on March 21, 2012, 11:13:01 PM
As previously stated i have boxes and not a needle and they drop on av every 20 miles in town and when on longer run around 30 miles.  im just happy to know that the 26.4 or whatever i see during the week isnt the actual mpg :)

I have a MK2 2.2D and brim to brim is definately the only way to go on checking your MPG. Average brim to brim is 46mpg, trip reads 52mpg. Thats averaged over about 10-15k miles

As for the boxes I get 80-120 miles from the 1st one, then about 40-50 out of the others

I would also like to mention that I think there is a void somewhere in my car that hides some fuel away. I ran out the other day (I know a stupid thing to do, especially in a diesel!) and could only get 49 litres into the fuel tank with it overflowing when I filled it back up this includes the small amount to get me to the petrol station. Where has the other 6 litres gone?! The missing fuel is the reason I ran out, I have never managed to get more than 48 litres in previously at fill up so assumed I would be safe to push it a little
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on March 21, 2012, 11:25:45 PM
so assumed I would be safe to push it a little

Never assume  :D :D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: K13 RFF on March 22, 2012, 12:14:25 PM
Got a question about the fuel consumption for a " Mazda 3, 2.0TD on 2007 '07' plate"

I recently spent a weekend in Liverpool using the Mazda as transport.

I covered 258.5 miles on 29.19litres of deisel. The trip computer said i was 'averaging' 51mpg but I worked out this figure is actually 40mpg. This sounds terrible for a 2.0 deisel?? any thoughts? (I was grandad driving).

Last year I also went away to a car show and when filling up a mate with an Astra VXR had used the same amount of litres of petrol as I had done deisel. (excluding cost)

Surely this cant be right??
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on March 22, 2012, 01:40:14 PM
That is indeed approx 40mpg.

Whether it is "right" or not depends on a lot of factors.  How well is you car maintained, oil, air filters, tyres (correct inflation and wear), roofrack, luggage, how quick do you accelerate and how quick do you get into a high gear, what were your journey lengths, at what speeds?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 22, 2012, 03:57:23 PM
Just on that id like if someone like me that has a 1.6 sport in petrol that also has the boxes on the fuel gauge eg 09 on to give me a run down of what they are experiencing with just town driving.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on March 22, 2012, 04:30:40 PM
The problem is Rog2012 that you are trying to narrow it down to a specific model/year/engine size. You will have to wait and see if someone with a matching configuration reads this and can give you an answer. Patience is a virtue.   :D :D   In the meantime you will have to make a judgement based on the information given so far.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on March 22, 2012, 04:44:16 PM
well it has given me great pleasure to find out that someone with a diesel is getting less than 30mpg using the manual way to work it out even though the trip is stating 35mpg, not a mazda though but makes me feel alot better about having a petrol :)

just on a sidenote how many of you have signed up to fairfuel.co.uk
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Matrixsenior on March 22, 2012, 09:45:40 PM
Just a quick note about a brim filled tank. The reason the needle doesn't move for 40-60 miles is that you are using the fuel in the filer neck up before you get to the fuel in the tank, apparently. Another reason the gauge and computer can be inaccurate. Wil's way is the best if you need a really accurate reading.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NewMazdaMan on March 26, 2012, 01:04:25 PM
well it has given me great pleasure to find out that someone with a diesel is getting less than 30mpg using the manual way to work it out even though the trip is stating 35mpg, not a mazda though but makes me feel alot better about having a petrol :)

just on a sidenote how many of you have signed up to fairfuel.co.uk

That website doesn't exist mate??
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: cross90 on March 26, 2012, 01:28:05 PM
I can only presume he means http://www.fairfueluk.com/

Just another petition surrounding soaring fuel prices that won't even be glanced at by anyone that can make a difference.

Their after 1 million signatures and are currently at 230,000ish
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gazzunka on March 26, 2012, 01:52:03 PM
57 mazda 2ltr sport.

Average since i got it in Janurary I have managed on the screen to read 27.7mpg. Slowly creeping up each week.

From a full tank I got 310 miles.

This is all mostly around town driving, and the odd foot down when required to put a corsa in its place  ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bignose1972 on March 26, 2012, 10:03:49 PM
I've got a 1.6 petrol that i've had from new since October 2008 and have covered 36K.

7000 miles ago i got an app for my phone and have been anal with filling in my details everytime i fuel - people waiting behind me are delighted!  ;)

I have a 100 mile daily commute and i travel 95% of the time solo. This includes mostly A roads with not too much town driving. I have averaged 41.5 MPG costing 15p per mile - all in all i'm happy with that. On the way to work i'm not in a rush, but that is different on the way home with some spirited driving. I'm a big believer in not going above 2K RPM until warm and redlining it at least once a week - it seems to work for me.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tim1979 on April 18, 2012, 01:29:07 PM
Right then, I've had my '09 1st Gen 2.0 petrol Sport for about a month now and covered roughly 600miles.  Here are my results:

(1)City Cycle -24mpg
This consisted of driving mostly on 30mph and 40mph roads stopping and starting alot, lots of turns, slowing down for speed humps, flooring the pedal to zip around traffic etc.  Covered about 200miles.  Mostly myself and one passenger, mainly myself though.

(2)Mixed Cycle -28-31mpg
50% City driving as per (1) above and 50% of country b-roads (30-40mph), a-roads (50-60mph) and about 50miles of motorway driving thrown in as part of that second 50%.  Mostly 2 people, but some journeys with 4 people (one bloke about 16stone in the back).

(3)Motorway only - 37mpg
Filled up on the motorway, drove 300miles return from London to Somerset on the M25 and M3, then scooted down the A303 which is mostly 70mph roads, some 50mph roads and some hilly parts.  Driving with 3 adults (The 16stone bloke in the car again with me), then drove 3 adults and all their luggage down the M25 and M23 to drop off and pick up from Gatwick airport. I sat on the needle close to 80mph (Which with sat nav one, was actually 72-73mph) most of the way on this run. Significant headwinds too.

So overall - I'm really impressed with a heavy 2litre petrol car which particularly with the motorway driving was fairly loaded up most of the time. Much much better than my old Cooper S and about the same as an old Corolla GT (With the Mr2 20value engine) but much more comfortable then both those cars.

How does that compare to others on the motorway?  If I was driving just by myself with no luggage do you reckon I could crack 40mpg if I drove carefully?
 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andyl on April 20, 2012, 04:38:53 PM
Just motorway see's me getting near to 40mpg in my 05 2.0 sport

I average about 35 mpg.

More than happy.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Rog2012 on May 03, 2012, 03:48:20 PM
I managed on a recent run mainly at 60mpg and 70mpg to get the av up to 40mpg done 44 miles before the first box went out which is twice what i get round the town :) round town is piss for any car imo.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: shearer27 on May 23, 2012, 10:11:30 AM
Filled up at the weekend - to the brim - and my 05 sport registered 492 miles on the display - umm I thought? Managed to get 422.4 miles with 38 miles left on the display so I would imagine getting about 440 from a full tank? This was 85% motorway and dual-carriageway driving at 65-75mph. My average has just hit 11.3m/l so this equates to 40.17mpg - so I'm a happy chappy.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NOTLguy on June 09, 2012, 01:17:36 PM
My new Mazda 3 Sport Skyactiv has just completed it's first fill up and achieved 39.8 MPG (Imperial Gallon ) on 617 kilometers of driving since buying the vehicle. I drove 95% city driving with a little highway driving as well.  For the first fill up, considering the engine is still being broken in, I consider this extraordinary.  In metric terms this is 7.0 liters/100km which is what the Mazda brochure claimed for highway fuel consumption. I am really impressed as the advertised fuel economy in North America is seldom achieved. Perhaps after the first oil change and completion of the break in period, it may get even better.

NOTLguy
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on June 09, 2012, 09:53:05 PM
My new Mazda 3 Sport Skyactiv has just completed it's first fill up and achieved 39.8 MPG (Imperial Gallon ) on 617 kilometers of driving since buying the vehicle. I drove 95% city driving with a little highway driving as well.  For the first fill up, considering the engine is still being broken in, I consider this extraordinary.  In metric terms this is 7.0 liters/100km which is what the Mazda brochure claimed for highway fuel consumption. I am really impressed as the advertised fuel economy in North America is seldom achieved. Perhaps after the first oil change and completion of the break in period, it may get even better.

NOTLguy

What engine is it?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Gavin on June 09, 2012, 10:09:49 PM
its the new skytive engine, only avaialble in the new cx5 in the uk i believe. not yet available in the 3 over here
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on June 09, 2012, 10:24:57 PM
But what size? My 2.2 averages around 52mpg, which is  5.5 l/100km.
I can easily do over 400 miles to the tank before the light comes on and the max I ever put in the car was 43 l.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Gavin on June 09, 2012, 10:53:30 PM
i reackon it will be the petrol.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NOTLguy on June 10, 2012, 01:08:51 PM
It is the 2.0 liter Skyactiv engine and burns petrol.

NOTLguy
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Staningrimsb on June 10, 2012, 05:55:04 PM
I seem to be getting arounf 45mpg round town and knocking on the door of 60mpg when on a good run, more than happy with that. ;D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on June 10, 2012, 10:20:32 PM
I have a 1.6 TS2 diesel just over a year old. Never really been satisfied with the fuel consumption. Came home from Wales on Friday. Filled up in Cardiff, and drove approx 190 mies to Essex. I decided to drive all the way at 60 m.p.h. on the clock ( 56 m.p.h. on my Tom Tom ) with cruise control on. Kept to 60 m.p.h. When I reached home my car fuel computer showed 68.2 m.p.g. ave !!!!!!!!! This actually equates to approx. 72 m.p.g. as my car computer reads approx. 4 m.p.g. LOW !!!!! ( Found by using brim to brim full tank top ups over the first year of use and comparing REAL figs achieved vs Car computer readings). My computer also showed 580 miles as remaining fuel left in tank, and only two blocks down on the fuel gauge ( giving a mileage of approx. 770 miles on one tank of petrol !!!!!! - and yes when the mileage left shows 0 there is always still approx. 15l left in the tank !!!!!!! )
Brlliiant mileage, but I really don't recomend 190 miles at 60 m.p.h. - boring!!!!!! But it did prove, if you are frugal, you can achieve very good fuel consumption figures.
My car has now done 16000 plus miles, and true fuel consumption up to its first service at 12500 miles averaged at a true 50.2 m.p.g ( all calculated with full tank brim to brim fill ups )
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on June 10, 2012, 10:24:29 PM
Error -  Should have been 770 miles on one tank of DIESEL !!!!!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Gavin on June 10, 2012, 10:25:05 PM
50.2 avg i dont know why your disapointed after 12000 mile
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on June 10, 2012, 10:32:47 PM
Not happy because around town driving only get around 35 to 40 m.p.g. which is well below Mazdas quoted 56 m.p.g.!!!! Also on long 200 mile trips on motorways I rarely get above 55 m.p.g. doing 70 m.p.h. and cruise control.

I must say, having achieved 72 m.p.g. on a 190 mile run, albeit motorways and little use of the accelerator, I am changing my views about the fuel consumption. Perhaps its not too bad....

It's an age thing for us old guys.......
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Gavin on June 10, 2012, 10:36:36 PM
that's damn good imo. we have the psa 1.6d in our Citroen berlingo van and only manage 45mpg overall. and it hard to get the figures in the book, it always has bin. but 52mds over 1200 mile is very good imo. and the figures in the book are usually calculated at about 56mpg anyway i think.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on June 10, 2012, 10:44:37 PM
Hi Gavin

Its true, book figs all done under strict laboratory conditions, and almost impossible to achieve in practise. And yes, I'm sure combined figures are probably achieved at 56 m.p.h.??

My disapointment is an "age" thing - LOL.... But I'm working on it..

I still think the 3 is a great car.....
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Samp! on June 10, 2012, 11:11:35 PM
Not happy because around town driving only get around 35 to 40 m.p.g. which is well below Mazdas quoted 56 m.p.g.!!!! Also on long 200 mile trips on motorways I rarely get above 55 m.p.g. doing 70 m.p.h. and cruise control.

I must say, having achieved 72 m.p.g. on a 190 mile run, albeit motorways and little use of the accelerator, I am changing my views about the fuel consumption. Perhaps its not too bad....

It's an age thing for us old guys.......

id be happy with that when i drove the 1.6d ts2 to nottingham and back i only averaged 48mpg and got 405 miles out of the tank, guess i must of been driving it a bit hard or something? ;)

but i was bloody impressed with that as at the time i was used to the 1.6 mazda 3 petrol that if i were to drive it the same way as i did le derv id be looking at mid 20's for mpg and about 240 miles from the tank.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: rmvf on June 11, 2012, 05:14:43 AM
I have a 1.6 TS2 diesel just over a year old. Never really been satisfied with the fuel consumption. Came home from Wales on Friday. Filled up in Cardiff, and drove approx 190 mies to Essex. I decided to drive all the way at 60 m.p.h. on the clock ( 56 m.p.h. on my Tom Tom ) with cruise control on. Kept to 60 m.p.h. When I reached home my car fuel computer showed 68.2 m.p.g. ave !!!!!!!!! This actually equates to approx. 72 m.p.g. as my car computer reads approx. 4 m.p.g. LOW !!!!! ( Found by using brim to brim full tank top ups over the first year of use and comparing REAL figs achieved vs Car computer readings). My computer also showed 580 miles as remaining fuel left in tank, and only two blocks down on the fuel gauge ( giving a mileage of approx. 770 miles on one tank of petrol !!!!!! - and yes when the mileage left shows 0 there is always still approx. 15l left in the tank !!!!!!! )
Brlliiant mileage, but I really don't recomend 190 miles at 60 m.p.h. - boring!!!!!! But it did prove, if you are frugal, you can achieve very good fuel consumption figures.
My car has now done 16000 plus miles, and true fuel consumption up to its first service at 12500 miles averaged at a true 50.2 m.p.g ( all calculated with full tank brim to brim fill ups )

I might try that brim full tank check over 380 miles, but will the 1.6 petrol be able to do it? also if its a 55 ltr tank i wonder how much fuel really is in there when filling to the brim. i better use the 97 octane aswell, going to do that on the 21st and will post results,
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on June 11, 2012, 07:45:32 AM
I might try that brim full tank check over 380 miles, but will the 1.6 petrol be able to do it? also if its a 55 ltr tank i wonder how much fuel really is in there when filling to the brim. i better use the 97 octane aswell, going to do that on the 21st and will post results,
I should hope so.

I've said in the past, my low fuel light comes on after about 10 gallons has been used (from a brimmed tank), so i can get an estimate of my economy from the mileage covered on the tank. 380 miles till this point (38mpg) should be easily achievable if staying legal and driving smoothly.

And even having driven well past the 0 miles left figure the most i've ever been able to fill up is 49 litres of this supposed 55litre tank. Not sure if theres the rest still sloshing round or i need to try harder to fill the tank neck.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on June 11, 2012, 09:08:45 PM
From new and up to 1st service at 12500 miles I always did full " brim to brim" tank fill ups and generally filled up only when the fuel light came on - normally car comp. showing less than 40 miles left in tank. In that year I never managed to get more than approx.40 litres in the tank meaning approx.15l left in the "55" l tank!!!!!

On my recent journey back from Wales the true mileage was 72 m.p.g. with 580 miles showing on the car comp. as mileage left in the tank giving a theoretical 770 miles to when the car comp would show the tank to be empty ( but approx.15l left in tank ). Using an approx. fuel consumption of 15.8 miles per litre, and with 15l left in the "empty" tank, this would equate to approx. another 237 miles to give a theoretical mileage of 1007 miles on a "full" tank of diesel!!!!!!

However, this is a highly unlikely as to do 1000 miles at a constant true 56 m.p.h.,using cruise control, is just too unrealistic, and too boring!!!! To achieve my 72 m.p.g. I  only did 180 miles on cruise control and that was bad enough! But hey we can all dream of magical figures!!!! And would you try doing 237 miles with a fuel tank showing empty !!!!

Oh well, back to normal driving methinks.............

( See my earlier postof yesterday regarding my 72 m.p.g. )
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bburton on June 11, 2012, 09:16:58 PM
When I complained at my first service that the car comp. was not very accurate, in my case reading approx. 4 - 5 m.p.g. LOWER than the true mileage, Mazdas reply was - the computer is there for information only, and doesn't necessarily reflect true data. And as for the  the fuel tank indicator. I don't know about you, but to have a fuel gauge showing empty, with approx. 15l left in the tank is bl - - - y useless!!!!

Check yours....
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: beefcake on August 16, 2012, 08:50:12 PM
I'm thinking of getting either a brand new Mazda 3 Tamura with a 1.6l diesel engine but have seen a 2.2L Sport for the same price with only 3.5k on the clock in immaculate condition.

Question is how many miles do people average in a 1.6 diesel to a tank versus how many miles in the 2.2l Sport as my decision is going to be based on fuel costs as I drive 500 miles a week

Carl
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gazpot0111645 on August 17, 2012, 07:42:02 PM
I have a lead foot and cant help my self. My previous car (golf tdi) was so much better than my mazda 3. Id say it averages about 32mpg which is bad for a diesel id say? But hey i have only got my self to blame.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: beefcake on August 17, 2012, 09:00:35 PM
So how many miles do you get out of a full tank!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daan on August 19, 2012, 04:40:59 PM
So far I'm managing to average 36mpg in my 2.0litre Sport, with a best of 39mpg on a long motorway run.

(http://mefi.us/images/fuelly/sig-uk/137000.png) (http://www.fuelly.com/driver/daan/3)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sharkfin on August 19, 2012, 07:58:34 PM
I have just drove from Newcastle to Kilmaurs and have averaged 39 mpg in my 2.0 sport it is about a 170mile trip
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: ross27 on August 19, 2012, 08:57:58 PM
Glasgow to Berwick Upon Tweed last month, averaged 38MPG in my MPS. Sat on the limit with cruise almost all of the way.

Overall average is 26MPG recently.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: hblake on August 22, 2012, 12:11:06 AM
Just hit 8000 miles in my 1.6d ts2 - averaging about 48mpg so far measured brim to brim. Usually fill up when the gauge reads empty which is at about 500 miles.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on August 23, 2012, 10:11:58 AM
So how many miles do you get out of a full tank!

I have 2.2 185 ps diesel, it averages around 50 mpg usually the light comes on after I have done around 400 miles, but the max I could put in the car was 43 litres of diesel.
On paper it has a 55 litre tank, so you can do over 500 miles.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: keith h on August 23, 2012, 10:17:11 AM
I never seem to be away from a petrol station. So far my 2010 TS2 is returning about 35mpg average. I try to drive on the computer read out for "consumption" & on a recent trip to the yorkshire dales using the A1 to get there and back mpg returned no better than 35 and that was using gentle acceleration & economy driving.
I had the car serviced 2 months ago in Hexham & the service manager said that 45 mpg was the most he had been told from customers.
Reading the posts its the norm.    regards Keith h
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on August 23, 2012, 11:25:25 AM
So how many miles do you get out of a full tank!

I have 2.2 185 ps diesel, it averages around 50 mpg usually the light comes on after I have done around 400 miles, but the max I could put in the car was 43 litres of diesel.
On paper it has a 55 litre tank, so you can do over 500 miles.


Your numbers don't stack up, 400 miles and 43 litres (9.46 UK gallons) is only 42 mpg.

As you can see from the spritmonitor entry in my sig, I too fill up with approx 43 litres each time, generally just over the 400 mile mark and am averaging 43.7mpg.

I can get nearer 50mpg on long motorway runs but I don't do them all that often.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on August 23, 2012, 11:58:58 AM
So how many miles do you get out of a full tank!

I have 2.2 185 ps diesel, it averages around 50 mpg usually the light comes on after I have done around 400 miles, but the max I could put in the car was 43 litres of diesel.
On paper it has a 55 litre tank, so you can do over 500 miles.


Your numbers don't stack up, 400 miles and 43 litres (9.46 UK gallons) is only 42 mpg.

As you can see from the spritmonitor entry in my sig, I too fill up with approx 43 litres each time, generally just over the 400 mile mark and am averaging 43.7mpg.

I can get nearer 50mpg on long motorway runs but I don't do them all that often.



That was the max I could put in it, but I have done 450 miles before the light came on.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: yarb on August 23, 2012, 02:12:33 PM
I have got an app which I fill in the speedo reading, Litres, £s and if it is a full tank.  Started with a full tank and after 4220 miles I am averaging 44.5mpg.  Most of this has been to and from work about 10 miles each way around Oxford ring road and A34 to Abingdon usually accelerate hard upto the speed limit to help heatup the DPF but also includes a trip to Stoke traveling at 75-80 on the M40 M6 and taking it a bit easier 65ish to Southampton A34 and Gatwick M40 M23.  The computer in the car shows and average of 49 and about 55-60 when traveling at 65ish 1750 revs in 6th gear on a flatish road
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andyl on August 24, 2012, 10:47:20 AM
Just fitted a K&N filter to my 2.0L Sport,first tank top up results in 38mpg. Mix of Motorway, mainly A rods and a bit of town driving. Increase of about 10%. Chuffed.
Haven't been creeping around either.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on August 26, 2012, 02:37:33 PM
396 miles 35.31 litres of diesel. 50 mpg.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on September 06, 2012, 07:22:55 PM
464 miles 41 litres of diesel.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on September 06, 2012, 08:37:02 PM
Average speed, or failing that what type of driving, e.g. motorway, country roads, city?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on September 07, 2012, 02:43:47 PM
UK motorway at 70, French Mw at 80 Belgian at 85 Dutch at 80
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on September 18, 2012, 07:31:49 PM
473 miles 43 litres of diesel. Mixed driving but mainly motorways.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Skott on December 29, 2012, 10:27:33 AM
I put £20 in the other day and done 100 miles and had to put some more in, felt being sick. But i have been doing stop start journeys over Xmas which doesnt help and i usually brim to brim the tank.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: abs on January 08, 2013, 12:18:36 PM
Got my new car in Nov 2012, overall very happy with.  My only issue is the mpg,  I'm getting about 440 on a tank leaving about 20 miles before zero on the obc,  and fill up takes about 45 litres.  I have clocked up about 1400 miles now and have read the mpg will improve with time and will generally be less during winter. 
Has anyone else experienced similar mpg and does it get better with time? 

Also how low do you let the obc get before you fill up.  I know some have said they fill up at 500 miles but I'm doing it at about 440 leaving 22 miles before zero.  Don't want to chance waiting to get to 500 miles and running out of fuel.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on January 08, 2013, 09:52:29 PM
What engine?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on January 09, 2013, 12:17:40 AM
It is a 1.6. It was in the title of the post before I moved it to the correct Forum..  Sorry about that.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: abs on January 09, 2013, 04:35:27 PM
What engine?

Sorry it's a 1.6d
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on January 09, 2013, 08:16:21 PM
My 2.2 is similar to yours then. The light comes on at 420 miles roughly, but I ve done 470 before and I couldn't put more than 43 litres init.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: abs on January 09, 2013, 10:38:34 PM
My 2.2 is similar to yours then. The light comes on at 420 miles roughly, but I ve done 470 before and I couldn't put more than 43 litres init.

Thanks mate
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on January 17, 2013, 04:13:49 PM
2600 miles on 54.3 gallons of Diesel....48 mpg? I think that is great...;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: k5mvb on February 11, 2013, 03:12:51 PM
I have a 1.6 takira auto, fuel consumption is very high, it has just passed an MOT and all the emissions are correct, the milage is just 15000.and the car is three years old. Has any body got any ideas.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on February 11, 2013, 03:31:18 PM
What are you calling "very high" you give no figures for us to make any judgement.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: lgb1961 on February 11, 2013, 08:43:20 PM
Lots of short journeys for me  :( mainly under 10 miles but roughly getting 36 mpg
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: tony2b on February 12, 2013, 10:58:17 AM
My 3 is 60 plate 1.6 Takuya
I have covered 45k now and I average 42mpg mainly motor way miles.
Tyre pressures as per mazda spec
Speed on m/way around 65/70
Supermarket fuel
Calculate MPG full tank to full tank.

Tony ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on February 12, 2013, 06:41:43 PM
I think Shell's V-Power diesel gives better fuel economy than other diesels. It is more expensive but it is better for the engine and I can do more miles with the same amount. So technically it isn't even more expensive. ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Wash on February 13, 2013, 05:57:12 PM
I have a Mazda 3 1.6 diesel and generally I average around 50mpg around town. I don't notice much difference in terms of MPG when running on higher octane fuel like Shell's V-Power although the extra detergents will undoubtedly aid the engine.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bucksgill on April 02, 2013, 11:09:07 AM
Did 470 motorway miles (with the odd foot down to see how fast the car is) burning 53 litres which makes an MPG of 40.5. Better than the 28 I got when having some fun against my friends 3 series on the motorway...

Out of interest, how big is the reserve in terms of fuel left after the light came on? I ask because the light came on at 400 miles with the 'miles remaining' at about 30. I then drove another 20 miles before adding 8 litres (service station prices) and then finishing the journey with another 40 miles. Filling to brim after it was only 45 more litres and the light was on so therefore the light must come on with about 10 litres left; which seems far too much? Also what does the 'miles remaining' calculate to as it's not the light on point or seemingly when the tank is really close to empty?

Forgot to add thats in my 2004 2.0L Sport :)

*merged your last two posts into one. - FemGearHead
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Baj MZ3 on April 03, 2013, 02:45:03 PM
I am getting anywhere between 45 and 50 mpg on my 2005 Mazda 3 1.6 Diesel. I do a 45 mile round trip on country roads 5 days a week and find a full tank gets me 10 days worth of this journey and about 30 extra miles so up to 480 miles on a full tank.

I am happy with that but better economy would be better.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Wash on April 03, 2013, 07:17:03 PM
I get about 67mpg if I'm on the motorway driving at 60mph but about 35-40mpg doing very short journeys around town where the engine barely gets up to temp.

(2007 1.6 diesel)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: M0RT on May 31, 2013, 04:54:50 PM
I've just used my first tank of fuel and it's been a very mixed week or so of motoring.  Pretty typical for me with several trips to work and back (40 miles each way, mostly dual carriageway and motorway) and some town driving.  I've run the aircon and also been sitting in traffic slightly more than usual.  I'm very happy with 53MPG  in my 1.6D  It's better than the car I've replaced (2.2 Nissan Primera) which could manage 50MPG if I drove like Morgan Freeman in that film...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Tomatoe on June 22, 2013, 06:05:33 PM
My MPG has gone down to 43mpg but it was at 52mpg.

I have tried the advised motorway run and keep the revs up for 20 minutes but the has not made a difference. It has also recently been serviced.

Any other suggestions? Maybe it is normal for mpg to reduce with the cars age?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: hogi on August 01, 2013, 10:14:19 PM
Only done a couple of thousand miles in my 2.0L Sport but am averaging 36 mpg - which is spot on with what various websites reckon.

A little envious of you diesel drinkers with your 50+ but I don't do many miles and there's all that DPF stuff kicking off. Maybe I'll return to the dark side with the next one   :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Subtle on August 01, 2013, 10:36:00 PM
I've done 1219 miles in my MPS (only had it 2 weeks) and am averaging 32.2mpg which is 10% better than the Focus ST I had previously (but that did have more power though)

Not bad considering.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Mazda3john on August 01, 2013, 10:43:29 PM
I've had my 2.0 sport for a few months and has averaged 33mpg which isn't to bad. Did reset it once to see what I averaged when I was driving round round my town and only manged 25mpg didnt enjoy that number as much lol.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Skott on August 02, 2013, 09:44:33 PM
I got 41mpg sitting at 60mph along the A66 last weekend.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Wash on August 03, 2013, 07:41:29 AM
Drove to Wales today and managed to average 72mpg over the course of the entire journey there and back. Well pleased with my little 1.6 diesel. :D

I have deleted the DPF though which has really improved the MPG!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ad on August 04, 2013, 09:48:59 PM
36.8 average over the 1500 miles. Not great for 1.6 petrol engine :(

(http://i.imgur.com/6dbpjOa.jpg)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mazda3-mike on August 13, 2013, 10:28:39 PM
900 miles in 6 days, Essex to Devon with A, B & Motorway driving and 43.5 mpg.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: tylerdurden82 on September 04, 2013, 07:27:39 PM
Have achieved a new personal best in my 1.6 petrol Mazda 3 - 48.13 mpg!  No short journeys, used only to get to and from work.  My journeys consisted of doing 50mph on the motorway, changing gear asap and anticpating road conditions. 

I also have switched my engine oil from semi synth to Redline 5w30 synthetic oil and put in a K&N air filter.  Delighted with that fuel economy.  8)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ad on September 05, 2013, 06:41:45 PM
consisted of doing 50mph on the motorway

Nice figures there, my record so far in 1.6 petrol is 43. However, the quoted part is just dangerous and I won't be trying that anytime soon.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on September 05, 2013, 06:55:30 PM
Off topic :
Tyler lives in Ireland. Perhaps they are not so maniacal on the Motorways there. I know on a recent visit, I found the road users in Ireland to be very courteous and safe. Unlike UK.Although I didn't do any motorway driving.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Ad on September 05, 2013, 10:34:14 PM
Off topic :
Tyler lives in Ireland. Perhaps they are not so maniacal on the Motorways there. I know on a recent visit, I found the road users in Ireland to be very courteous and safe. Unlike UK.Although I didn't do any motorway driving.

I'm not sure I understand your point TBH. I wouldn't call driving 50 mph on 70mph motorway "courteous and safe". Same as I wouldn't call driving 70mph on 70mph motorway "maniacal".

Maybe it is just me, but I find drivers who drive well below the limit on motorways - dangerous.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on September 05, 2013, 11:01:49 PM

Please read my last sentence again. Don't misquote me. I didn't do any motorway driving so I cannot comment as to how the Irish drive on that type of road. There is a speed limit of 100 kilometres per hour in place on all national roads (including dual carriageways) throughout Ireland. I know they do seem to abide by this. What I am implying is that they drive noticeably slower in Ireland than we do in UK therefore to drive slower on the motorways would probably seem quite logical to them.
However let me say that I totally agree with you that in UK driving slower than the speed appropriate to the road conditions can be dangerous.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: tylerdurden82 on September 08, 2013, 10:33:47 AM
I see my post has caused a bit of controversy!  :o

I should say I had a typo in there and I drive 60mph not 50mph on the motorway!  Although I have to say, I do see some people doing 50mph.  I wouldn't call this dangerous as I always stay in the left lane.  Anyone going faster can easily switch lanes to pass.  I have noticed a trend as fuel prices rise, more and more people here are doing less than the speed limit.  I wouldn't call that dangerous as long as it is not excessive. 

I would like to point out that the difference between 60mph and 70mph in terms of economy is massive.  I would struggle to hit 40mpg doing 70mph.  I can't comment on UK motorway driving as I am not familiar with it. 

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Baj MZ3 on September 11, 2013, 01:29:47 PM
Am managing to now get 52mpg from my 1.6D, what is concerning me is that documents and reviews say the tank is 55 litre capacity, however I never get above 47 litres when I fill up from needle beyond empty.

Does anyone know what the actual capacity is?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: rmvf on September 26, 2013, 12:56:33 PM
Am managing to now get 52mpg from my 1.6D, what is concerning me is that documents and reviews say the tank is 55 litre capacity, however I never get above 47 litres when I fill up from needle beyond empty.

Does anyone know what the actual capacity is?

What it says 55 ltrs, by design the fuel gauge will always show less than whats in the tank, unless faulty.

Also i believe by design it will cut off fuel when 95% full cant remember where i read that.

i think main reasons being its just not good going below a gallon in tank it can lead to fuelling problems, alsofolk driving round when fill up light one etc.

i drive 380 mile journeys in a 1.6 petrol so i can gauge the fuel read out versus a tank fill to brim point.

Hope this helps i have 5 different mazda models their all the same ref fuel readings in my expereince.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on October 05, 2013, 12:45:18 PM
Over 4 years my 1.6 petrol Gen1 Takara was averaging around 35mpg according to the trip computer, & that was borne out by constant refills to the brim & then doing the maths myself. The best MPG achieved was just over 46 on a long round trip on 60 mph limit roads in Scotland earlier this year.  I found that the orange light would come on with around 28 miles left on the fuel computer & when the that said zero miles left I had well over a gallon left in the tank, (and once got 52 litres in after running for 40 miles on "empty")!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Neil P on October 11, 2013, 10:18:45 PM
New 185 Sport Nav returned 62.8 mpg at an average speed of 74.2mph on Monday when I drove back      up the M6 from Bradford after picking it up   ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Seb83 on October 15, 2013, 11:41:20 PM
Had the car 2 months ish. Was on about 42 mpg when I got it, now averaging between 49.5 and 50 mpg in a 2.2 185 diesel.

I will admit to driving it a bit silly the first week so the mpg took a big hit, but getting back to 50 at the moment without worrying about how I'm driving.

35 mile commute to work each day and mostly motorway/major A roads.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Scarabée on October 26, 2013, 11:01:21 AM
Are you lot going off the trip computer or calculated mpg?  Just done my first 214 miles between fill-ups and there is a difference of 4.2mpg between my calculations and what the computer is telling me. 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on October 26, 2013, 12:08:30 PM
After 9 years of ownership and every single gall (ltr) calculated  ( I know I'm sad)  I have constantly seen a discrepancy between my calculations and the trip computer. I never use the computer to gauge my fuel level /consumption. 

There is  precisely the same discussion going on in the Mazda 6 forum and the co-census is the trip computer is in error. 

If you want accurate MPG / Consumption figures you need  to do brim to brim over a period of at least 1 month.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on October 27, 2013, 09:05:34 AM
Although there is obviously a discrepancy, I think it may vary depending on how the car "reads" the amount of fuel that you put in. I ran my previous 1.6 Takara to empty & then brimmed it more or less every time for 4 years & the average on the trip computer was pretty close to my own calculations (less than 2 mpg variance). My calculations suggested better consumption than the computer (although it read "empty" when there was still over a gallon in the tank)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on October 27, 2013, 10:48:18 AM
This could very well be true.  Although throughout my driving career I have never allowed my tank to get that low so I have never been in a situation where I had to totally refill my tank. I never normally allow my tank to go below half full.

You see, I belong to a generation where there was always the danger that if you allowed your tank to get that low, then there was the constant  threat of dragging sediment into your system with the resulting catastrophes. Coupled with the scarcity (at the time ) of filling stations you learned to err on the margin of safety.  Also my employment meant that there was always a possibility that I would need to travel considerable distances at a moments notice. So I knew I always had at least half a tank of fuel.   Old habits die hard. 
   
Brim to brim measurements will take away any "electronic" discrepancies and will always give you far more accurate results.  As Aidan has said there is usually a quantity of fuel left after the gauge is reading empty. To my way of thinking this fact is distorting the trip computer data.   
I shall continue to do it the old fashioned (but accurate) way. At least I have the comfort of knowing that in 50 years of driving I've never run out of fuel  :) :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on October 27, 2013, 01:11:02 PM
I have to admit that I've "extreme tested" a cars fuel capacity only when they have been almost new & there has been little time for any sediment to build up. Like Willpower I'm aware of the danger & consequent expense associated with sediment in the fuel lines etc.  I've only ever run out of fuel once, in a Rover, I had a reserve can in the boot & I got away without any adverse effects.  My normal useage nowadays means that I use nearly a tank full every 2 weeks (380-400 miles) so it's convenient to fill up every other weekend.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: misar on October 27, 2013, 05:35:46 PM
It is unlikely that any of the empty tank theories have much effect on the discrepancy.

You are monitoring the fuel added to the tank and the computer is recording the volume injected into the engine. Even if both systems were totally accurate the respective volumes could differ. The density and hence volume varies significantly with temperature and much of the time the fuel dispensed by the garage pump will be at a different temperature to the same fuel passed to the injection system. Of course this could work either way. Loss of fuel as vapour would also cause a difference - you put it in but the engine never sees it. This could be affected by empty tanks and would bias the results seen by the computer in the required direction. However, all modern cars have sealed fuel systems to prevent pollution so it is unlikely to cause the significant effects observed.

Of course both systems are not totally accurate but any substantial error will be with the car - UK trading standards allow a tolerance of -0.5% to +1%. Given that the observed bias is always in one direction the most likely explanation is the one that most people believe - all the manufacturers bias their computers to "improve" the observed fuel consumption.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on October 27, 2013, 08:38:56 PM
Yes, but when you fill up, the sensor that tells you how full the tank is may be affected (the handbook tells you to fill up with a certain minimum amount to prevent the sensor reading incorrectly) & if you are filling right to the brim, the tank will show full until you use the fuel "overfill".  I have also observed that the (theoretical) total range displayed when I have filled up varies depending on the miles I achieved on the last tank full (or possibly the last few tank fulls). If I have managed 400 miles on a tank and put 50 litres (or more) in, the total range displayed is always higher than if I have done fewer miles and put less fuel in, or achieved poorer MPG figures(but still filled it to the brim). With a full tank it will tell me I have a theoretical range of  up to 460-470 miles. If I was to take a long trip up & down a motorway at a steady 50mph I'm sure I could achieve that, but in reality that adjusts itself downwards as I use the fuel in real world conditions. 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on October 27, 2013, 08:59:01 PM
I agree with misar, the actual amount of fuel in the tank shouldn't affect MPG calculations.

The fuel tank volume sensor will affect the predicated range calculation though, and that also depends on the MPG figures.

I suspect that the range calcs do not use the same MPG value as that displayed, but instead use an average value from the last x miles or so.  If I've been on the motorways and fill up, the predicted range is much greater than if I've been driving around town and then fill up.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on October 27, 2013, 09:15:59 PM

Which once again proves the efficacy of doing brim to brim, then number of miles travelled since last fill, divided by number of galls needed to bring  the fuel level back to the same position  (change the formula as required)
The trip computer has to base it calculations on some form of constant. If that constant is never provided (in real life it rarely is ) then it will have to take the historic information that it already has. The same is true if you look in depth at the Average speed function. This will vary dependant on the past hour(s) of driving, including stationary time overnight. Whilst moving it registers information every 10 minutes.
The algorithms used are only as good as the cost spent on producing them. Mazda were clever enough to provide a trip computer as part of the spec, to be part of the sales honeypot. It's down to the driver what they make of it. If they are comforted by the display, or if they take it with a pinch of salt and rely upon basic mathematics to obtain their mpg figures.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mameha1977 on November 11, 2013, 01:55:11 PM
I used fuelly for a few months to work out my average mpg, which turned out to be 33.7 UK MPG.

http://www.fuelly.com/driver/mameha

Actually I was a bit disappointed with this as I expected it would be nearer 40 mpg when I bought it.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: flashgordon on January 14, 2014, 10:39:00 PM
Hi,

Just a couple of things that I was looking for advice on with my 59 plate Mazda3 2.2d Sport (150)

(1) when I got the car, with the standard Toyo tyres fitted, I used to get about 48-50mpg on a motorway run. I replaced my two front tyres and that seems to have dropped to 40mpg. Does anybody else get that low?

(2) I can never decide whether to be in gear 5 or 6 when doing 70-75. Gear 5 seems to give low mpg at that speed and gear 6 under-revs. Any advice?

Cheers

Dave
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: makkmartono on January 15, 2014, 07:43:28 AM
The 2.2 185ps engine develops 400 nm at 1800 rpm.
At 70 mph in 6th it is a bit over that. So if I were you I would drive in 6th, That is how I am using my one. If it drops below 1800 rpm then change gears.
Tyres: Toyos were bad, some ither tyres are worse. I got Vredestein 4 season tyres fitted and I always average over 50 mpg.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: kev12 on January 21, 2014, 03:19:42 AM
Hi all, newbie here!
I've had my 185 for two months now, I reset the averages when I first got it, and Im on 46.7mpg and 37mph av speed. My commute to work is 20 miles on the A1 and 5 miles through town, and back.
I'm going to start using V Power from now on, I'll report back after a few tanks with any revised figures.
Incidentally, I've treated the oil to some ZX1 after reading the Diesel sticky. I'm hoping this MAY help me get to around 50mpg, which would make me very happy.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jonesp1 on April 14, 2014, 08:56:37 AM
Hi guys,

My wife has a Mazda 3 2004 TS 1.6 Petrol. She does hardly any miles so is being used to do the school run etc.

Working out the mpg I reckon we are only getting around 20mpg out of it.

Can that be right?  I know the short trips can have a massive impact on fuel economy.

What do you think?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on April 20, 2014, 08:08:16 AM
Hi guys,

My wife has a Mazda 3 2004 TS 1.6 Petrol. She does hardly any miles so is being used to do the school run etc.

Working out the mpg I reckon we are only getting around 20mpg out of it.

Can that be right?  I know the short trips can have a massive impact on fuel economy.

What do you think?
That is low and doesn't sound right but I think you're answering your own question with the low miles and short journeys.

Is the servicing up to date? Oil? Filters? Plugs etc? Can you use it on a longer run to get a better idea?

If I fill up and only do short local journeys from few days my economy is low but I would still expect to see 30 mpg.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Aidan on April 20, 2014, 08:55:32 AM
I've had 2 1.6 petrol models [a gen1 & a gen2]  & that doesn't surprise me. I do a 14 mile each way commute and if I cruise with the fuel computer showing over 40mpg on the dual carriageway I can just about make the total range remaining reduce by the mileage I've done- The first 3 or 4 miles, in town with a cold engine, use up more fuel than the rest of the trip cruising at 60-70mph.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jaseone on April 25, 2014, 11:57:35 AM
The mpg figures that people are quoting, are they from the cars on-board trip computer or are you working it out manually?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jonesp1 on April 25, 2014, 12:05:52 PM
Hi,

Yes had a service recently so all the filters have been changed.

I have been working out the mpg manually as I don't think our 2004 model has a trip computer. Might be wrong.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on April 25, 2014, 01:02:35 PM
The TS model did not have a trip computer. The Sport did. However it has been found to be notoriously inaccurate and I have always found manual brim to brim calculations to be he best way to get an accurate MPG figure.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: pickledog on May 30, 2014, 10:25:51 AM
Hi, just did a Scotland - France return trip in my 06 TS 1.6, 2200miles at about £345 so I think I averaged around 38mpg... would've liked more but not bad for petrol considering the car was well loaded on the way back  ;) Toll charges seem to have risen since my last visit.....and my next car definitely needs cruise control.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BuzyG on May 30, 2014, 04:08:42 PM
LoL, I've been Commuting  my Z4 the past three days, whist the Mazda3 I picked up last week, is being treated to some TLC by the local garrage, ready to take up duty as the DD.  I'm averaging 15.2 MPG. Hoping the little Mazda can beat that. 

PS (Should be getting it back in an hour or so.)   :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: pixelcult on July 18, 2014, 01:33:29 PM
Just managed to get 500 miles from a single tank before the warning light came on.

Unfortunately, this was only achieved by drafting lorries at 60mph up and down the M5 for a week, so not particularly safe or exciting.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: BuzyG on July 19, 2014, 10:22:32 PM
Just managed to get 500 miles from a single tank before the warning light came on.

Unfortunately, this was only achieved by drafting lorries at 60mph up and down the M5 for a week, so not particularly safe or exciting.

Why! Why! Why!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: pixelcult on July 21, 2014, 09:36:07 AM
Weekly commute = 400mi, nearly all motorway
Full tank of petrol = £65 ish
Driving in the wind at 80-90mph usually returns a 370mi tank
Driving with lorries at 55-65mph usually returns a 500mi tank

So I either spend £52 or £70 a week at the pump, depending on how I choose to drive. Maybe not a huge difference, but I thought it worth investigating.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on September 19, 2014, 09:20:43 PM
No one use fuelly? Takes the guesswork out of mpg calculation and you get a sig the anally retentive will enjoy and updates automatically everytime you add a fuel up.

www.fuelly.com
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: yarb on September 20, 2014, 07:50:45 AM
I an IPad app called fuel log got 45 mpg over 2.5 years using this on my2.2 185 diesel, computer in car said 50 mpg. Now got a mk3 2.0 120 petrol only filled up once so far will post mpg later when done a couple of tank fulls
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: sandancer1 on September 21, 2014, 01:42:39 AM
2014 diesel 2.2 sportnav
Urban 52.7
Motorway 57
Worked out manually
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bignose1972 on September 23, 2014, 12:26:16 PM
Weekly commute = 400mi, nearly all motorway
Full tank of petrol = £65 ish
Driving in the wind at 80-90mph usually returns a 370mi tank
Driving with lorries at 55-65mph usually returns a 500mi tank

So I either spend £52 or £70 a week at the pump, depending on how I choose to drive. Maybe not a huge difference, but I thought it worth investigating.

I totally agree.

My weekly commute is 550 miles on mostly 'A' roads.

At 110 miles per day driving at 60 mph I can get 440 miles before the fuel light comes on - which equates to filling up every 4 days at about £60.

If I drove at 80 mph my fuel light comes on at about 370 miles - meaning I would have to fill up every 3.5 days costing an extra £7.50 every 4 days.

By driving a bit slower I save approx £37.50 a month on fuel which equals a good few beers with the lads........... :P
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on September 23, 2014, 08:29:38 PM
Oh my god that sounds really good to me!! So I'll be driving slower in future I recon.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: rog.c on November 10, 2014, 12:00:11 PM
I am averaging 49.4 mpg in my fastback 2.2 diesel sport, despite taking few short trips. I do very little urban driving & am fairly gentle with controls. The aircon is nearly always off. Real m.p.g. (plotted full/full) is little different from my old 2.0 Renault diesel (claimed 48.7 actual 46.7)
I hoped that things would improve with mileage but I now have 6500 miles on the clock and mpg is no better than when new. I have experimented with premium fuels, but these make little difference. Very disappointed with mpg (claimed 72.4) but like the car in most other respects. Would be interested  to hear of other users views   
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on November 10, 2014, 08:21:21 PM
I think the engine fuel ecomony improves after about 10,000 miles, so expect some improvements a the miles increase.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: lem on December 07, 2014, 04:18:49 PM
I am averaging 49.4 mpg in my fastback 2.2 diesel sport, despite taking few short trips. I do very little urban driving & am fairly gentle with controls. The aircon is nearly always off. Real m.p.g. (plotted full/full) is little different from my old 2.0 Renault diesel (claimed 48.7 actual 46.7)
I hoped that things would improve with mileage but I now have 6500 miles on the clock and mpg is no better than when new. I have experimented with premium fuels, but these make little difference. Very disappointed with mpg (claimed 72.4) but like the car in most other respects. Would be interested  to hear of other users views   

I'm getting 44-45 in my hatchback with 2000 miles. Maybe a little more leaden footed that you, but I still expected more. I used to get 55 from my old diesel Octavia Estate.
To get good mileage you need to do around 50-55mph.. no more. Economy seems to plummet over 1500rpm.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: lem on December 07, 2014, 04:20:18 PM
I got 56 on the test drive with a 2.2 SE-L. Mine is a Sport. I very much doubt the chunky wheels make that much difference.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Sotonman on December 08, 2014, 05:09:57 PM
well, had my 2011 1.6 petrol takuya almost a month, only been doing short journeys, and one 60 mile round trip on the motorway, not done a brim to brim yet but am travelling from Southampton - Wigan for new years so will get a better sense of mpg then, but as it stands at the moment, the on-board computer says 27.2mpg..... far from happy tbh.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on December 08, 2014, 11:49:24 PM
well, had my 2011 1.6 petrol takuya almost a month, only been doing short journeys, and one 60 mile round trip on the motorway, not done a brim to brim yet but am travelling from Southampton - Wigan for new years so will get a better sense of mpg then, but as it stands at the moment, the on-board computer says 27.2mpg..... far from happy tbh.

I would be getting that checked over unless you spend hours sitting idling, never release the accelerator pedal or do nothing but 2 mile trips. I tend to find the onboard to be slightly pessimistic and actually get a little more on brim to brim.  That and with exactly car as you i'm getting between 38 and 44mpg the average of which appears in my post signature.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Sotonman on December 10, 2014, 06:24:48 PM
admittedly my journeys are short,mainly just a mile or 2, so im not gonna panic just yet til ive done my brim to brim,and the long journey over new year.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on December 10, 2014, 06:42:28 PM
In that case I'd doubt it ever gets warmed through, so will be running rich most of the time, just be glad you didn't buy a diesel, that sort of use would have the dpf begging for expensive mercy in short order rather than just having a big fuel bill.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on December 10, 2014, 11:44:48 PM
I've done 2200miles todate and over that mileage the computer is recording 42.3mpg.  :)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: raynerph on January 03, 2015, 09:08:03 PM
I've covered almost 8000 miles in my Mazda '14 2.0l 120ps SE-L Nav.

I had hoped for 50 mpg (as suggested in the sales brochure).  But I'm averaging about 41-42 MPG.  My last car achieved what its brochure stated - that was a 2.0l Diesel Corolla.

As with previous cars (I've been recording data for over 10 years), it looks like the Mazda 3 will follow a seasonal trend, with the lowest MPG in winter and the best in Summer.  I've tried switching to V-Power spec fuel but no obvious improvement in MPG (although I think the flat spot at low revs in 2nd gear was less obvious on the better fuel).  I'm running Winter Tyres at the moment, but no obvious change to the MPG from changing over to Winter Tyres.

(I have had to put the .png chart picture on my own web-space, as I could see no way to upload the image to the Forum.  Is there a way to load images to the forum?  I tried the attachment option, but the preview didn't show it in-line with the document.)

(http://www.phrphr.talktalk.net/temp/mazda/mpg20150103.png)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on January 03, 2015, 10:40:24 PM
There are many picture hosting sites that will provide you with [ IMG ] links.  Here is the sequence for just one of them. Others will be similar. It is your choice which you use.





To post a photo on the forum


Go to www.photobucket.com. If you do not already have an account,  click on "Join now" to create your own account. It's free.

Move to the centre of the screen and click on  UPLOAD tab.  When the dialog window opens up, navigate through to where you have stored your image on your computer. Select and Open.

Photobucket will upload your image and store it. Once completed it will show you a thumbnail picture. Click on the thumbnail and it will show you some links on the right hand side.

You need to select the link named  Direct.    Copy and then return to the forum and paste into the body of your message.

Click on the preview button then highlight the link and click on the picture icon. (http://i79.photobucket.com/albums/j124/willpower128/img1_zpsd751fdd0.jpg)  This will put the IMG brackets around the link 

Preview to make sure it's ok. Add any text you need to and post.

If you have any questions please do not hesitate to contact me.

 

Thank you,  Mazda3forums Administration Team
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mac1776 on January 07, 2015, 08:07:19 PM
2.2 diesel Sport Nav, manual , 2014, 6500 miles, averaging 48 mpg  :-\
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: blueboy2001 on January 09, 2015, 08:46:33 PM
2008 2.0 Sport hatchback, averaged 31mpg over 11,000 miles.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: AndyDRC on February 28, 2015, 03:48:33 PM
Hi all.

Figured out most of the displays etc on my 3 Sport Auto but the Effectiveness display namely the little green tree hasn't sprouted any leaves no matter how efficiently I try to drive. I'm averaging over 40 to the gallon, iStop is always switched on and I haven't got a heavey right foot.
Has anyone managed to get their tree sprouting or do we have to get somewhere near the fairytale factory quoted mpg figures to get any growth?

Best regards
Andy
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on February 28, 2015, 10:22:08 PM
I'm getting 42.3avg mpg over 3200miles.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Martin_46 on March 05, 2015, 11:29:29 AM
2.3 MPS, Manual , 2011, 39,000 miles, averaging 25 mpg
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: dtaylor928 on March 21, 2015, 09:15:45 PM
Hi all.

Figured out most of the displays etc on my 3 Sport Auto but the Effectiveness display namely the little green tree hasn't sprouted any leaves no matter how efficiently I try to drive. I'm averaging over 40 to the gallon, iStop is always switched on and I haven't got a heavey right foot.
Has anyone managed to get their tree sprouting or do we have to get somewhere near the fairytale factory quoted mpg figures to get any growth?

Best regards
Andy


Hi,

I have the 2.2 Diesel Sport Nav Manual... my tree has fully grown :o)  I've done around 18K in a year... ironically though... it says that iStop has saved me around 55 miles (out of the 18K)... wow !  I'm averaging around 56mpg so quite good.

Cheers,
David
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: AndyDRC on March 27, 2015, 06:04:14 PM
Hi all.

Figured out most of the displays etc on my 3 Sport Auto but the Effectiveness display namely the little green tree hasn't sprouted any leaves no matter how efficiently I try to drive. I'm averaging over 40 to the gallon, iStop is always switched on and I haven't got a heavey right foot.
Has anyone managed to get their tree sprouting or do we have to get somewhere near the fairytale factory quoted mpg figures to get any growth?

Best regards
Andy


Hi,

I have the 2.2 Diesel Sport Nav Manual... my tree has fully grown :o)  I've done around 18K in a year... ironically though... it says that iStop has saved me around 55 miles (out of the 18K)... wow !  I'm averaging around 56mpg so quite good.

Cheers,
David

Thanks for the reply. It would seem I have to improve on my 40 mpg average.

Best regards
Andy
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gorgerak on April 15, 2015, 12:27:47 PM
Hi guys, I'm hoping to get a bit of a sample consensus going from those of you who drive, have driven the new 2.2 diesel engine in the 3.

I know fuel figures given by manufacturers should always be taken with a dose of salts, but I am struggling to explain to people why my engine is so far away from the figures in the brochure.

For reference, the fastback diesel should be able to deliver 60.1 mpg in town, 72.4 mpg on a combined drive and 80.7 mpg on the motorway. I am an economical driver but I struggle to get more than 51/52 on a combined drive and an 80 mile motorway trip from Cheltenham to Taunton averaged only 58 mpg. That was sitting religiously at 70 with no air con our cruise control etc. That section of the motorway is pretty flat. And I'm at a bit of a loud as to why it's so low...

If anyone else drives this engine can you post your average figures? It would be great to know if I am alone in this or (hopefully) not!
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gknight9 on April 15, 2015, 08:24:18 PM
Your doing better then me, I cannot get anywhere near the quoted figures, M3 2.2 sport nav fastback diesel current average 45.29 mpg.

Best I have so far is steady motorway cruise Sussex to Dover where I averaged 48.92 mpg.

My old 2.0 diesel Pug 407 sport SWwas better than this at 47 mpg, and without all the weight loss features of the M3.

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Scottbrook on April 15, 2015, 11:21:07 PM
Hi guys, I'm hoping to get a bit of a sample consensus going from those of you who drive, have driven the new 2.2 diesel engine in the 3.

I know fuel figures given by manufacturers should always be taken with a dose of salts, but I am struggling to explain to people why my engine is so far away from the figures in the brochure.

For reference, the fastback diesel should be able to deliver 60.1 mpg in town, 72.4 mpg on a combined drive and 80.7 mpg on the motorway. I am an economical driver but I struggle to get more than 51/52 on a combined drive and an 80 mile motorway trip from Cheltenham to Taunton averaged only 58 mpg. That was sitting religiously at 70 with no air con our cruise control etc. That section of the motorway is pretty flat. And I'm at a bit of a loud as to why it's so low...

If anyone else drives this engine can you post your average figures? It would be great to know if I am alone in this or (hopefully) not!

I took delivery of a Mazda 3 Fastback 2.2 diesel less than a month ago and whilst pleased with the car the economy disappoints.

Over the last two years I have had two CX5, an SE L Nav and a Sport Nav, both with the 2L petrol engine. Both cars would achieve 44 – 48 mpg on a longish run which I thought good considering the size of car and claimed combined figure of 47mpg.

On the CX5 forum there were frequent complaints about the fuel consumption of the diesel version which I couldn’t understand but now I am beginning to be sympathetic to their views.

Although I haven’t had the car long I am returning around 53 -55 mpg , which is someway short of Mazda's figures. I am an economical driver as can be seen from the mpg achieved in the CX5, so I was expecting around 60+ mpg from the M3.

Gorgerak, in another post you mention about times when the instant consumption drops and there is  a strong smell. My car also does this and it appears to be about every 200-300 miles. I believe this to be the DPF having a “burn out” to clear the particulates, but I thought this happened as part of the general driving process as long as the car wasn’t doing short journeys.

One of these “burn outs” happened on the way home tonight after a motorway run of 25 miles. I had managed to get the mpg to 52 for the trip but during the DPF episode it dropped to 42. The average indicated since filling up 400 miles ago was 54mpg and this dropped to 52mpg. I must point out that this tank of diesel  also had a burn out at 200miles when there was a similar drop in mpg.

Whist this is happening the instant read out is in the 20s and often the teens mpg. If this process is supposed to occur so frequently (2 or 3 times per tank full) then there is little advantage in the diesel over the petrol, apart from the superior torque!!

Do I need to have words with the garage about this or is it just something M3 diesel owners have to put up with?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: joedaman633 on April 16, 2015, 10:47:19 AM
Hi guys, I'm hoping to get a bit of a sample consensus going from those of you who drive, have driven the new 2.2 diesel engine in the 3.

I know fuel figures given by manufacturers should always be taken with a dose of salts, but I am struggling to explain to people why my engine is so far away from the figures in the brochure.

For reference, the fastback diesel should be able to deliver 60.1 mpg in town, 72.4 mpg on a combined drive and 80.7 mpg on the motorway. I am an economical driver but I struggle to get more than 51/52 on a combined drive and an 80 mile motorway trip from Cheltenham to Taunton averaged only 58 mpg. That was sitting religiously at 70 with no air con our cruise control etc. That section of the motorway is pretty flat. And I'm at a bit of a loud as to why it's so low...

If anyone else drives this engine can you post your average figures? It would be great to know if I am alone in this or (hopefully) not!

70mph wouldn't get you the best possible mpg, I wouldn't personally expect to get anywhere near the quoted figure at that speed. That number should significantly go up if you traveled at 60mph instead, though I suspect to meet the 80mpg figure something around the 50-55mph mark would be what you need.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: RichardC on April 16, 2015, 12:59:40 PM
I am somewhat surprised that so many forum members seem to think that they should be able to achieve manufacturers mpg figures. There are a good few websites giving the details of what is involved in the official test and I suggest that members read up on the subject. One cold start, ambient temperature 20 to 30C, no ancillaries ON are several aspects of it. There are other tricks like removing wing mirrors to reduce drag and keeping the car as light as possible amongst other things. The Honest John website http://www.honestjohn.co.uk/realmpg/ covers real mpg for almost all cars. I get very nearly 80% which is in line with other contributors.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on April 16, 2015, 02:34:53 PM
Very often, this forum, like many others, is a method of allowing members to vent their ire and frustration that they are not seeing the promised figures. This unfortunately seems to be truer of members who have not had the car very long and who have not taken the time to read through some of the related postings on this forum and others, that cover the subject.

This in no way condones the methods used to "achieve" the published figures. After all, the manufacturers are going to do their best to make the vehicle enticing. However realism soon sets in and ultimately people get used to the consumption that they experience. 

One thing that does annoy me is people who will dismiss the car as a failure based on only one aspect of the overall product.  In fact in many of the complaining posts you will see how new owners are very pleased with everything else about the car, including the high level of specifications available for the price.

At the end of the day, there are compromises to be made. 
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gorgerak on April 17, 2015, 04:54:15 PM
I'm not venting ire or frustration. I merely wanted to know if I was alone in experiencing the fuel economy figures I am getting or if they are typical figures. My previous car was a 2011 Astra GTC 2.0l diesel. I had it for 3 years and yes the fuel economy was worse when the car was new but after a few thousand miles I was regularly achieving 48mpg on the same journey I do now. Vauxhall's printed figures for that engine were 55 or 57mpg so I was quite happy with 48. Moving to a car that can reportedly achieve 72mpg on this run filled me with the expectation that a consistent result of high 50s to 60 was not a silly goal.

So you can imagine my puzzlement when the engine won't deliver anywhere near that. As I said above I know you have to take printed mpg figures with a dose of salts and I think it's bad that manufacturers aren't forced to be honest. But only being able to achieve 3/4 of stated figures is pretty poor from Mazda.

Thank you for that link to the honest John website. That'll be very useful in the future. Looking at its response for the new 3, it says realistic mpg is 50mpg for the diesel manual. Not great but that does at least show up my concerns that I'm not the only one and reinforces my belief in my own driving. :)

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NickS on May 05, 2015, 10:42:24 AM
A couple of months down the line  - I manage to get up to 51.3 mpg on the commuting during the week, but then my wife blasts down to Chichester or Southampton and drops it back to 50.9.....
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gorgerak on May 05, 2015, 01:20:26 PM
Dont let you wife drive :P
Hi all.

Figured out most of the displays etc on my 3 Sport Auto but the Effectiveness display namely the little green tree hasn't sprouted any leaves no matter how efficiently I try to drive. I'm averaging over 40 to the gallon, iStop is always switched on and I haven't got a heavey right foot.
Has anyone managed to get their tree sprouting or do we have to get somewhere near the fairytale factory quoted mpg figures to get any growth?

Best regards
Andy

I have done over 7,500 miles and my tree hasn't grown at all either. I've given up on that screen tub and just use the 3rd screen for the fuel economy graph
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NickS on May 05, 2015, 05:30:11 PM
Dont let you wife drive :P
If she didn't drive the 3, it would be the MX5 and she's averaging around 28 mpg in that so I won't complain from a fuel economy point of view. Plus I get to commute cross-country in the MX5, which is fun on a fine day.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on May 06, 2015, 12:30:41 AM
We tour with our MX 5 2.0 Sport Tech and get 38mpg avg and 42mpg on just motorways. It's our 3rd and the the mpg has been consistent on all of them.
Just clocked 4500 miles on our 2.0 petrol 3 and that mileage the average is 42.2mpg. Checked it twice over that period by brimming the tank and found the computer to be registering very accurate results.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: NickS on May 08, 2015, 01:23:33 PM
just use the 3rd screen for the fuel economy graph
Thanks for that tip, it shows my commute varied between 51 mpg and 63 mpg depending on traffic over the past few days.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: AndyDRC on May 14, 2015, 06:55:06 PM
Checked my mileage over the last 1500 miles by brimming tank. Local town driving and a couple of longer trips. Worked out at 40.5 mpg. Car's computer states 41.1. Seems the computer is quite accurate.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: del123 on May 15, 2015, 01:08:50 PM
Hi,

I've done 13000 miles on my Mazda 3, my average MPG across this range is 47-48 MPG across mixed motorway and town driving. My previous car (Volvo s40 d2) was averaging around 53 MPG with the same driving pattern (which doesn't even have start stop).

I'm a little disappointed seen as the claimed MPG is far in excess of this. I don't expect to meet manufacturer claimed figures but I'd have hoped for my 50s anyways.

One of the reasons for the poor MPG in my opinion is the excess DPF regens, it regens approx every 60-70 miles. I've also had the change the oil early due to the oil level rising (which I believe is also due to DPF regens)

I've raised this with the dealer, the analyzed the DPF regen patterns and have come back stating they don't see anything wrong. They also mentioned not to trust the on board computer for average MPG. I'm measuring MPG using the brim method on my next fill.

It seems from a few posters here that poorish MPG is common. Anyone out there experiencing high levels between services?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: yarb on May 15, 2015, 07:15:07 PM
7000 miles TC 42.2 mpg, over that mileage and keeping a record on my iPad app 41.4mpg but the graph is rising.  Can get 54 on the TC on a run to the coast with the CC set to 60 and 48 when CC set to 70
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on May 23, 2015, 05:11:33 PM
My fuel economy has gone up nicely with the arrival of warm weather, it was down to 38-9 over winter but it's up to 42-45 now. Trip computer on mine is a bit pessimistic, seems to read between .5 and 1mpg under the brim to brim calculations.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bobmax on July 13, 2015, 01:47:51 AM
How good is the trip at measuring MPG?
I'm getting around 39 ish MPG showing over the last few weeks.
I'm not a boy racer anymore lol,  but on the other hand not a grandma driver :D
I'm also a bit lazy, and haven't done a tank to tank reading (yet)
I'd be more than happy with 39+ on this 2.0 petrol motor (had it since November 2014)If the trip is reliable. ;)
last car I had Diesel 2.0 only got to around 34 (again...Trip computer). :(

What are you guys getting?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 9swampy on July 13, 2015, 11:55:15 AM
My motor's on order so can't confirm personally yet, but without exception comments in on-line reviews that mention the MPG remark that mileage is unusually close to the quoted figures of 40.4 (120 urban) and 37.7 (165 urban) without trying; so it just sounds like you're confirming their reviews (though you don't mention your cycle). Be happy; fewer trips to the petrol station  O0


Ooh, also there's another thread on fuel efficiency on the forum:
Just clocked 4500 miles on our 2.0 petrol 3 and that mileage the average is 42.2mpg. Checked it twice over that period by brimming the tank and found the computer to be registering very accurate results.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: yarb on July 13, 2015, 12:31:31 PM
Reset mine at the begining of the year TC showing 43, brim to brim over tha period 42.1, 4500 mile costing me about 11p per mile this is with tesco's discount.  Use cruise control most of the time and don't tend to accelerate to hard usually do just under 70 on motorways and duel caridgeways and speed limit on ordinary roads. 2 litre 120 petrol
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on July 15, 2015, 08:02:45 AM
6k so far and TC is 42.7mpg
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: yarb on July 15, 2015, 05:30:24 PM
I have a tree had it for about the last month, I think it's more to do with the miles saved by the Istop kicking in, save about 73 miles so far
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on July 15, 2015, 10:51:31 PM
Oh right I've not looked at the istop to see how much I might have saved, I'll have have a look at that and post the number over the next day or two.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 18, 2015, 01:18:44 PM
How good is the trip at measuring MPG?
I'm getting around 39 ish MPG showing over the last few weeks.

I find the trip to be surprisingly accurate, it's quick to fall and slow to build though so if for example you get stuck in traffic straight after a 0 it'll drop down to mid 20s then even if the rest of the tank is easy cruising it'll not fully recover. Usually that leaves it under reading on mine, vast majority of tanks it is spot on or between 0.5 to 1 mpg pessimistic, it's only ever over read once in the year I've had it.

Mines a gen 2, running figure below.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: gknight9 on July 21, 2015, 07:36:12 PM
System says 50.8 mpg, but thats after the CMU has been replaced (twice) and the system reset by the dealer a couple fo times blanking all previous history.

My trusty spreadhset advises 46.24 mpg.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on July 21, 2015, 11:48:05 PM
Checked istop and it says 29 miles.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: del123 on July 22, 2015, 03:01:48 PM
Checked istop and it says 29 miles.

Thats pretty much aligned with what I'm getting (using my spreadsheet also). I'd have expected to break the 50 mpg barrier to be honest
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jinja_ninja on July 31, 2015, 03:02:06 PM
I've recently got a 1.6 Petrol 3 Sport (2010). Mixed driving, mainly urban I'm only getting around 32mpg (according to computer). On a 70 mile motorway drive I managed around 38mpg.

I'm getting the feeling that the 2.0 Petrol is pretty much the same MPG as the 1.6? I got the 1.6 to get a bit of extra economy. I've just come from a Kia Ceed 1.6 CRDi (60+ MPG) and maybe I'm expecting too much...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 31, 2015, 05:42:05 PM
I've recently got a 1.6 Petrol 3 Sport (2010). Mixed driving, mainly urban I'm only getting around 32mpg (according to computer). On a 70 mile motorway drive I managed around 38mpg.

I'm getting the feeling that the 2.0 Petrol is pretty much the same MPG as the 1.6? I got the 1.6 to get a bit of extra economy. I've just come from a Kia Ceed 1.6 CRDi (60+ MPG) and maybe I'm expecting too much...

It'll depend on driving and usage style, I would suggest unless you spend large amounts of time stationary and the 2.0 had the stop start that if you had a 2.0 it would be even worse. Lots of slow movement, short trips and stop start traffic will push your economy down.

We're you cruising at 70 or "70" for the motorway trip. At 70 it sits on the cruise at about 3100 rpm and does 40-41mpg at "70" it goes over the vvt activation point (I reckon about 3.5k as it seems to suddenly get a shift on above that) and fuel economy goes down the pan.

If I'm forced down to 50 for long periods by road works it'll do 45mpg, if it's locked at 70 it'll do 40ish more than that and economy takes a dive.

I have the 2011 1.6 Takuya so a similar car running 40.4 mpg as a 12 month average worked out by fuel used and miles done not trip comp.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bobmax on July 31, 2015, 05:54:02 PM
Well........... I'm not sure about being worse.
I'm getting a constant 40MPG showing, just doing mostly short trips and an occasional 10 mile run on the motorway. ;)
I am amazed at the fuel economy of this 2.0 motor. 8)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 31, 2015, 06:48:36 PM
Well........... I'm not sure about being worse.
I'm getting a constant 40MPG showing, just doing mostly short trips and an occasional 10 mile run on the motorway. ;)
I am amazed at the fuel economy of this 2.0 motor. 8)

I assume given his car is a 2010 we're talking about the old 143bhp 2.0 not the new skyactiv one.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bobmax on July 31, 2015, 06:54:58 PM
Sorry no
It's the 2014 Skyactive one.
I thought you might've guessed by my Avatar. ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 31, 2015, 07:33:16 PM
Sorry no
It's the 2014 Skyactive one.
I thought you might've guessed by my Avatar. ;)

I did guess yeah but I assumed the original person asking the question was referring to a 2.0 of the same age as the car they've just bought.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: jinja_ninja on July 31, 2015, 09:46:19 PM
I've recently got a 1.6 Petrol 3 Sport (2010). Mixed driving, mainly urban I'm only getting around 32mpg (according to computer). On a 70 mile motorway drive I managed around 38mpg.

I'm getting the feeling that the 2.0 Petrol is pretty much the same MPG as the 1.6? I got the 1.6 to get a bit of extra economy. I've just come from a Kia Ceed 1.6 CRDi (60+ MPG) and maybe I'm expecting too much...

It'll depend on driving and usage style, I would suggest unless you spend large amounts of time stationary and the 2.0 had the stop start that if you had a 2.0 it would be even worse. Lots of slow movement, short trips and stop start traffic will push your economy down.

We're you cruising at 70 or "70" for the motorway trip. At 70 it sits on the cruise at about 3100 rpm and does 40-41mpg at "70" it goes over the vvt activation point (I reckon about 3.5k as it seems to suddenly get a shift on above that) and fuel economy goes down the pan.

If I'm forced down to 50 for long periods by road works it'll do 45mpg, if it's locked at 70 it'll do 40ish more than that and economy takes a dive.

I have the 2011 1.6 Takuya so a similar car running 40.4 mpg as a 12 month average worked out by fuel used and miles done not trip comp.

Thanks for the info. I'll keep an eye on the revs. If it means sitting at 65 on the motorway to get an addition 3-5mpg, then so be it :)

I've got a baby now so driving like a loon is no longer required lol  ^-^
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: daiking on August 01, 2015, 08:52:50 AM
My car 2006,  1.6 petrol seemed to get better till I had about 50k miles on the clock when the economy had improved from 36 to 38 mpg in my normal driving over a year (40 in summer, 36 in winter).

Except when I got up to about 90 miles, the economy dropped back and has done since (now at 113k miles). I don't religiously record my mileage/petrol anymore but after all this time I trust the trip computer and fuel gauge. However this week, I got my engine undertray fixed, I'd noticed it had been loose for a while but not got round to fixing it. Immediately the economy has got a bit better.

I also had an oil change and new rear shocks but I'd hazard a guess that the loose undertray flapping about was causing major aerodynamic problems and affecting the fuel economy. I shall monitor the situation over the next few weeks. Car is renewed though, feels much better now after changing the shocks.

For a time a I also used a replacement k&n panel filter which also seemed to help economy by 10% but I know opinions are mixed on there type of filters compared to the oem paper ones. So that's up to other to make the choice after knowing the risks. Insurance is the other issue.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on August 01, 2015, 11:16:18 AM
Thanks for the info. I'll keep an eye on the revs. If it means sitting at 65 on the motorway to get an addition 3-5mpg, then so be it :)

I've got a baby now so driving like a loon is no longer required lol  ^-^

Its not necessary to drive slowly everywhere just know the engine character. Below 3.5k it's effectively on an economy cam, above it's on a power cam. I do go over 3.5k when I want to accelerate, it's more efficient to reach cruising speed quickly using the peak power and torque than to labour the engine up through the gears. Just make sure it isn't up on the power cam during cruising or you'll notice at the pumps.

Also with you having come from a diesel keep an eye on the rev counter anyway, as if you change gear by ear you'll probably find your revving the knackers off it due to the difference in sound level (my Mrs has a diesel Citroen drives me mad in the 3 by going everywhere at 4k revs plus because that's the level of din she is used to).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: E.T. on September 20, 2015, 08:33:13 PM
I was getting 45 generally, and 50 on as long run.  After yesterdays remap, I was "testing" the new 170bhp performance,  fuel consumption is lower, and when I gho back to driving normally, I'm expecting 47-50 day to day, and maybe 55 on a long run.

Don't forget that mpg figures are all based on certain driving criteria that don't really match d2d  real driving.

Driving carefully on the standard map I have had 53mpg, but In reality I do over takes and drive a bit faster...and its square law on speed vs fuel
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bignose1972 on September 21, 2015, 10:35:22 AM
Thanks for the info. I'll keep an eye on the revs. If it means sitting at 65 on the motorway to get an addition 3-5mpg, then so be it :)

I've got a baby now so driving like a loon is no longer required lol  ^-^

Its not necessary to drive slowly everywhere just know the engine character. Below 3.5k it's effectively on an economy cam, above it's on a power cam. I do go over 3.5k when I want to accelerate, it's more efficient to reach cruising speed quickly using the peak power and torque than to labour the engine up through the gears. Just make sure it isn't up on the power cam during cruising or you'll notice at the pumps.

Also with you having come from a diesel keep an eye on the rev counter anyway, as if you change gear by ear you'll probably find your revving the knackers off it due to the difference in sound level (my Mrs has a diesel Citroen drives me mad in the 3 by going everywhere at 4k revs plus because that's the level of din she is used to).

I think the 3.5K discussion on the 1.6 petrol is a valid one.

I have a 110 mile daily commute and my car has done 99K. Cruising with RPM below 3.5K gives me a range of 440 miles before the fuel light comes on. I'm lucky that i usually miss any stop start traffic by travelling at non peak times. If i drove above 3.5K at say '80 mph', then my tank range drops to about 370 miles. I find a natural balance between the two as i really enjoy the engine and some spirited driving on my way home! 420 mile range seems to be my average.

Travel sick kids = great fuel economy! ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: google09 on September 28, 2015, 07:56:16 AM
Just in case anyone is interested I've attached a copy of my recent fuel log indicating my mpg figures at each fill (full tank) with the Mazda computer avg mpg readout registering 42.7.

(http://i79.photobucket.com/albums/j124/willpower128/Forum%20Photo%20fixing/image_zpsqvavqdxi.jpg)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: E.T. on September 28, 2015, 07:15:02 PM
Just done a 240 mile round trip. 

Main a roads going, basically  A120, A507 and roundybouts across Milton Keynes A414 Average going 52mpg

On the way back, all motorway / dual  M40, M25, A12  Exactly 50mpg

Both ways were off peak, but still heavyish flowing traffic.

(this is after the remap by BBR, so 120bhp --> 170bhp + better fuel economy (was averaging 45mpg before this)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bobmax on March 14, 2017, 02:23:46 AM
Just wondering if the fuel reading on the computer dash is close to the actual usage? :-\
I haven't actually done a tank to tank reading yet.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: misar on March 14, 2017, 09:38:24 PM
Just wondering if the fuel reading on the computer dash is close to the actual usage? :-\
I haven't actually done a tank to tank reading yet.

With my Gen 2 the computer long term average is 1 or 2 mpg better than my long term tank to tank average. A spot test on one filling may not be a good guide either way. Unless you drive VERY carefully either value will be far away from Mazda's claims.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bobmax on March 15, 2017, 01:15:22 AM
Just wondering if the fuel reading on the computer dash is close to the actual usage? :-\
I haven't actually done a tank to tank reading yet.

With my Gen 2 the computer long term average is 1 or 2 mpg better than my long term tank to tank average. A spot test on one filling may not be a good guide either way. Unless you drive VERY carefully either value will be far away from Mazda's claims.

I'll get round to a tank to tank one day :D
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: yarb on March 15, 2017, 08:20:12 AM
My tank to tank over 20000+ miles is about 2 mpg less than the one shown on by the computer my tank to tank is 42.5
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 185sport on March 15, 2017, 01:27:10 PM
Over 65K miles and 158 brim to brim refuelings the on-board computer on average shows just over 3 mpg better than the pump readings.

Currently I'm averaging 44.7 MPG by pump readings.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bobmax on March 15, 2017, 01:32:27 PM
The computer reading can be a bit confusing.
I'm currently on 43.8 MPG at the moment, but went to kent (from Hampshire) a couple of weeks ago and it went up to 55MPG :o
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: yarb on March 15, 2017, 01:57:24 PM
The computer reading I was referring to is the average at the bottom of the screen which I reset at the beginning of each year (forgot this year) not the average showing for one trip, mine hit 60MPG the other night mainly because I came out of the restaurant and drove for 25 miles without stopping or accelerating apart from turning onto the road and leaving the 30MPH zone
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: tylerdurden82 on May 29, 2017, 08:52:56 PM
Just achieved 50 mpg out of my petrol 3.  Doing a lot of motorway driving at 60 miles an hour (with air con on in hot weather) and anticipating road conditions.

I don't need a diesel with that sort of economy.  The key is regular oil and filter changes.  I get mine changed every 6k miles.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: RX8 Loon on July 19, 2017, 11:32:43 AM
After 7 years, 3 months and 92k miles of ownership I'm getting best ever results out of my car. OK, I'm doing a 240 mile round trip every week with 90 miles city driving in between. I'm now getting as high as 53miles to the gallon on a brim to brim fill (OBC said 56mpg), and got my first ever 500+ mile tank. The DPF passive regen seemed to kick in every 180-210 miles, but now looks like this is stretching to 220-250 miles and if I time it right on one of the longer runs it only seems to last about 10 miles.

Must be loosening up a bit ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: bobmax on July 19, 2017, 11:46:12 AM
After 7 years, 3 months and 92k miles of ownership I'm getting best ever results out of my car. OK, I'm doing a 240 mile round trip every week with 90 miles city driving in between. I'm now getting as high as 53miles to the gallon on a brim to brim fill (OBC said 56mpg), and got my first ever 500+ mile tank. The DPF passive regen seemed to kick in every 180-210 miles, but now looks like this is stretching to 220-250 miles and if I time it right on one of the longer runs it only seems to last about 10 miles.

Must be loosening up a bit ;)

Yes, Diesels do loosen up and give better results in time.
My last Diesel motor  did  8)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 19, 2017, 07:02:23 PM
Well after 3 years i'm getting 36-39 winter and 40-45 mpg summer in my 1.6 petrol. Average overall measured tank to tank is 40.3mpg. Most it's ever done on one tank is 421 miles bit usually it's more like 360 to the 380.

Be interesting to see if it goes up at the end of the month, given it's got it's year 6 service so the factory spark plugs will be renewed along with the 3 year old air filter and new oil.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mart_haj1986 on July 20, 2017, 08:56:41 AM
Thanks Steven, If you don't mind me asking what sort of driving are you doing?
I seem to only get around 30Mpg travelling 16 miles a day, with mainly town driving and a 3 mile (each way) jaunt down a dual carriageway.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: yarb on July 20, 2017, 12:54:04 PM
Biggest thing is IStop when traveling in towns, mine this time of year is kicking in with the first 1/4 mile at the end of the road. typical work trip is stopped 5+ minutes and IStopped for about 4Mins 50secs. In winter it can be IStopped for only 2+mins so wasting petrol stopped.  Averaging about 45mpg at the moment with a 9 work trip each way
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 20, 2017, 02:24:43 PM
Thanks Steven, If you don't mind me asking what sort of driving are you doing?
I seem to only get around 30Mpg travelling 16 miles a day, with mainly town driving and a 3 mile (each way) jaunt down a dual carriageway.

Distance wise my daily mileage is similar 6 to 9 miles each way anywhere between 15 mins and 25 depending on route and traffic conditions. Commuting is a mixture of a and b roads with a about 2 miles of 50mph dualcarriageway. Due to shift rotation I only sit in traffic one week in 4 though.

Also whenever me and the OH are off we'll be away for a jaunt somewhere and 1 to 2 hours on cruise at 70 will usually put the average for that tank safely above 40.

That and I run on 99 octane and have pretty much the lowest rolling resistance set of 205 17s you can get that will still stop and steer.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mart_haj1986 on July 20, 2017, 03:22:08 PM
Cheers Steven,

That put's my mind at rest a little :)

My traffic is very much stop/start at the beginning and end of my journeys and we have the big family Mazda 5 for the longer journeys, so mine is only ever really used for the shorter journeys.
I think I saw on another of your posts a while ago but cant remember, What tyres are you running?
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 20, 2017, 04:41:57 PM
Got a set of Goodyear efficientgrip performance. Tbf overall average probably has gone up by .5 mpg since I got them. But it's probably a little better than that as its dragging up a 2 year average.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on July 30, 2017, 11:16:21 AM
Well after 3 years i'm getting 36-39 winter and 40-45 mpg summer in my 1.6 petrol. Average overall measured tank to tank is 40.3mpg. Most it's ever done on one tank is 421 miles bit usually it's more like 360 to the 380.

Be interesting to see if it goes up at the end of the month, given it's got it's year 6 service so the factory spark plugs will be renewed along with the 3 year old air filter and new oil.

I get about the same (average about 1mpg higher at around 41.5mpg brim-to-brim method - mine being a saloon may make a marginal difference compared to an equivalent hatchback version) in my 1.6 petrol - interesting that you use super unleaded - have you noticed any difference in mpg and/or performance whilst using it?  I wasn't sure whether the standard older models (i.e. not the MPS) would benefit from it other than perhaps lower emissions (cleaner burning of the fuel) and cleaning the inside of the engine (say using Shell and other 'brand' fuels that have cleaning additives, as opposed to supermarket fuels which don't).

For me, it was difficult to know how much of a difference (other than the engine sounding a bit quieter/smoother) the big 6th year service made, as my mileage varies per year quite a lot due to changes in jobs/workplaces (difficult to compare).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 30, 2017, 12:47:43 PM
I don't have any numbers on this car I've always run it v power, my previous 1.5 Suzuki improved by about 2.5 to 5% when I switched over. Willpower does have numbers on his that improve/get worse when he changes between the 2.

In all honesty I wouldn't hand on heart say it makes much of a difference but given the difference in cost is about 2 quid a week it's not breaking the bank. If I ever find myself short of 2 quid a week...then I'd probably switch the a.c. off instead.

Got it back from the year 6 on Friday seems to be running very nice indeed, shall see if it gets any better.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on August 06, 2017, 03:28:33 PM
I don't have any numbers on this car I've always run it v power, my previous 1.5 Suzuki improved by about 2.5 to 5% when I switched over. Willpower does have numbers on his that improve/get worse when he changes between the 2.

In all honesty I wouldn't hand on heart say it makes much of a difference but given the difference in cost is about 2 quid a week it's not breaking the bank. If I ever find myself short of 2 quid a week...then I'd probably switch the a.c. off instead.

Got it back from the year 6 on Friday seems to be running very nice indeed, shall see if it gets any better.

Gave my car an 'Italian tune up' yesterday and have bought some Redex fuel injector cleaner additive (4-dose bottle) to use over the next month or so.  I'm also thinking of using Shell SuperUnleaded as well, especially as I haven't being doing much driving for the past few months (gave up my job/thinking about a career change, so no commute and only a 25 mile round trip once a fortnight to keep the car battery and running gear going ok), but will be going down to the West Country on holiday soon, which should give my car a very nice workout and put up to 1000 miles on the clock over the fortnight, equal to about 2-3 fillups of fuel.  On the same trips before I've managed to get 45mpg+ out of the car, so I'll see what difference both the additive and using (where possible) Shell SU (with its extra additives) over the period.

Obviously there may be variations due to where I might drive to whilst I'm there and road conditions (day/night driving, weather, traffic, etc), but it'll be interesting to see what (if any) difference they make on an older standard car (i.e. not a turbocharged MPS or more modern direct-injection engine with a knock sensor) which has been well-maintained.  The Redex may not make much of a difference in max. power available, but from looking up tests done by many (see YouTube), they can help make power delivery smoother over the rev range of each gear, perhaps helping older performance cars regain some 'lost' power.  I'll let you guys know how I get on around the middle of September.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Willpower on January 14, 2018, 09:45:21 AM
I was chatting with the sales staff in my local dealer on Friday and allegedly there are plans for world wide legislation to make manufacturers actually do real life mpg readings. Exactly what is involved I can't say, or what body would be overseeing the results. But it would mean testing a car as it would be driven on the road. Not stripped down on a carefully prepared track. 

That would prove interesting
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: zoomzoomer on January 14, 2018, 12:26:33 PM
Good to hear, common sense at last. I am more than happy with my new cars mpg of 36 in winter and that's with a lot of stop start driving.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on February 23, 2018, 02:12:55 PM
For the first time since getting the car I've had to fill it on 95 octane supermarket. Gotta say fuel economy on my gentle roll to work is so far the same however it currently feels like driving 3 up. Mid range torque appears to have disappeared and it feels rather lazy.

I was always of the opinion it was quite a nippy car for the power it had...on Morrison's 95 it's a slow car. No running issues obviously just rather flat.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: red_imps_2003 on February 27, 2018, 04:13:15 PM
I've been monitoring my 1.6 d TS2 (59 plate) using brim-to-brim for 15 months now (recording using the 'Fuelio' app). The average over that time is 50.6mpg - not far of the figure reported in the Honest John real mpg page (49.5). It has been fairly typical to see 48 - 50 over the coldest months and 51 - 52 over the warmest ones. The average is probably raised very slightly by the odd long journey I have done on motorways and steady A-roads, where the MPG at re-fill was typically mid fifties. The highest I have recorded over a full tank was 57.89. I've varied a lot between supermarket stuff and BP/Shell premium diesels with no obvious correlation with changes in mpg at the next re-fill. That said, I don't think I've filled up with premium fuels consecutively enough times to have minimised contamination from the previous cheap stuff. I'm not attuned with my car enough  to tell whether there has been any variation in 'performance' (engine note, lumpiness, responsiveness). There was a period where it seemed to hesitate upon first leaving the house in the morning but I don't think it coincided with any particular fuel.

I've also tried a number of other changes over that time too, so it would be impossible to attribute any changes, perceived or otherwise, directly to fuel anyhow. I had a generic remap four months in, a terraclean three months after that, used Redex, Millers Ecomax, ZX1 Extralube, and two-stroke engine oil in the fuel tank, as well as ZX1 Extralube in the oil. None of which made any perceptible difference either to the fuel economy or the general running (except the remap, which has improved acceleration in the mid range and higher up quite noticeably). I also put a bottle of Wynn's DPF cleaner in the fuel tank three weeks back and the only perceptible effect of that was a complete shutdown twice in quick succession as I accelerated hard off a roundabout on the way in to work a couple of days later. Dunno what that was about but it hasn't happened again since, thankfully.

Of course, none of this provides any indication what differences are happening on the insides in terms of gunk build-up and wear-and-tear.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on March 05, 2018, 04:37:41 PM
I've been monitoring my 1.6 d TS2 (59 plate) using brim-to-brim for 15 months now (recording using the 'Fulio' app). The average over that time is 50.6mpg - not far of the figure reported in the Honest John real mpg page (49.5). It has been fairly typical to see 48 - 50 over the coldest months and 51 - 52 over the warmest ones. The average is probably raised very slightly by the odd long journey I have done on motorways and steady A-roads, where the MPG at re-fill was typically mid fifties. The highest I have recorded over a full tank was 57.89. I've varied a lot between supermarket stuff and BP/Shell premium diesels with no obvious correlation with changes in mpg at the next re-fill. That said, I don't think I've filled up with premium fuels consecutively enough times to have minimised contamination from the previous cheap stuff. I'm not attuned with my car enough  to tell whether there has been any variation in 'performance' (engine note, lumpiness, responsiveness). There was a period where it seemed to hesitate upon first leaving the house in the morning but I don't think it coincided with any particular fuel.

I've also tried a number of other changes over that time too, so it would be impossible to attribute any changes, perceived or otherwise, directly to fuel anyhow. I had a generic remap four months in, a terraclean three months after that, used Redex, Millers Ecomax, ZX1 Extralube, and two-stroke engine oil in the fuel tank, as well as ZX1 Extralube in the oil. None of which made any perceptible difference either to the fuel economy or the general running (except the remap, which has improved acceleration in the mid range and higher up quite noticeably). I also put a bottle of Wynn's DPF cleaner in the fuel tank three weeks back and the only perceptible effect of that was a complete shutdown twice in quick succession as I accelerated hard off a roundabout on the way in to work a couple of days later. Dunno what that was about but it hasn't happened again since, thankfully.

Of course, none of this provides any indication what differences are happening on the insides in terms of gunk build-up and wear-and-tear.

Don't forget that the two grades of diesel available at the pumps are the same in terms of cetane rating (equivalent of octane rating for petrol), unlike petrol, where the octane rating for 'super' fuels is higher (97/98/99 Ron), however both 'super' diesel and petrol have increased levels of detergents in them, more so generally in the higher-priced branded filling stations, which help remove gunk in engines that haven't been cared for so well or that mainly do short journeys/urban work that the engines don't like and promotes them gunking up.  Your car may be in good nick, so all any fuel is doing (assuming its well cared for and does a reasonable amount of extra-urban work regularly), or equivalent shop-bought additives, is keeping the engine and injectors clean.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on March 12, 2018, 04:24:21 PM
Well mysteriously the one tank of 95 I've ever run in this car is also the worst mpg I've ever got out of the car. So 36.8..I've never been below 37 (checked back through fuelly) in 28k I've had the car.

Also the first time the trip computer has been optimistic as well, normally I get about .5 mpg better brim to brim than it says this time it was .5 worse than it said.

Yes winter will be having an effect..but it's 3 years of data including 3 winters.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on March 20, 2018, 02:03:13 PM
Well mysteriously the one tank of 95 I've ever run in this car is also the worst mpg I've ever got out of the car. So 36.8..I've never been below 37 (checked back through fuelly) in 28k I've had the car.

Also the first time the trip computer has been optimistic as well, normally I get about .5 mpg better brim to brim than it says this time it was .5 worse than it said.

Yes winter will be having an effect..but it's 3 years of data including 3 winters.

That seems about right and agrees with what I've found my 1.6p can get on 95RON in cold, bad weather and heavy traffic to work (35.5 - 36mpg at about this time last year going to work - worst conditions in all respects I've come across [mine normally does an average of 37mpg in the dead of winter).  On superunleaded, mine's currently averaging about 38.5mpg though not on quite so much traffic (similar weather).

I'm also wondering if it makes any difference which filling station and pump you choose, as well as the day/time, e.g. just after the tanker delivers the fuel, or the last drop-off for them, plus the pump that takes from a corner of the underground tanks....?

Whilst most filling stations are well used, so fuel doesn't sit around for ages like it can do in car tanks, I'm wondering if the big underground tanks suffer from poor mixing, especially in the corners, where old fuel may linger and thus give poorer performance if you take fuel from a pump that uses that area of the tank.  I know this is a problem with water tanks and is often the cause of bacteria growth if the inlet and outlet pipes are not on opposite sides as well as top and low level respectively.  Just a guess as regards fuels though.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: RichardC on March 20, 2018, 08:52:11 PM
Well mysteriously the one tank of 95 I've ever run in this car is also the worst mpg I've ever got out of the car. So 36.8..I've never been below 37 (checked back through fuelly) in 28k I've had the car.

Also the first time the trip computer has been optimistic as well, normally I get about .5 mpg better brim to brim than it says this time it was .5 worse than it said.

Yes winter will be having an effect..but it's 3 years of data including 3 winters.

That seems about right and agrees with what I've found my 1.6p can get on 95RON in cold, bad weather and heavy traffic to work (35.5 - 36mpg at about this time last year going to work - worst conditions in all respects I've come across [mine normally does an average of 37mpg in the dead of winter).  On superunleaded, mine's currently averaging about 38.5mpg though not on quite so much traffic (similar weather).

I'm also wondering if it makes any difference which filling station and pump you choose, as well as the day/time, e.g. just after the tanker delivers the fuel, or the last drop-off for them, plus the pump that takes from a corner of the underground tanks....?

Whilst most filling stations are well used, so fuel doesn't sit around for ages like it can do in car tanks, I'm wondering if the big underground tanks suffer from poor mixing, especially in the corners, where old fuel may linger and thus give poorer performance if you take fuel from a pump that uses that area of the tank.  I know this is a problem with water tanks and is often the cause of bacteria growth if the inlet and outlet pipes are not on opposite sides as well as top and low level respectively.  Just a guess as regards fuels though.

I read once that you should buy fuel when the temperature is at its lowest as it expands with heat. So first thing in the morning when it has had time to cool all night is probably best. Conversely 9 or 10 pm is probably the worst time. Maybe there is some truth in this
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on March 23, 2018, 06:15:37 PM
Well mysteriously the one tank of 95 I've ever run in this car is also the worst mpg I've ever got out of the car. So 36.8..I've never been below 37 (checked back through fuelly) in 28k I've had the car.

Also the first time the trip computer has been optimistic as well, normally I get about .5 mpg better brim to brim than it says this time it was .5 worse than it said.

Yes winter will be having an effect..but it's 3 years of data including 3 winters.

That seems about right and agrees with what I've found my 1.6p can get on 95RON in cold, bad weather and heavy traffic to work (35.5 - 36mpg at about this time last year going to work - worst conditions in all respects I've come across [mine normally does an average of 37mpg in the dead of winter).  On superunleaded, mine's currently averaging about 38.5mpg though not on quite so much traffic (similar weather).

I'm also wondering if it makes any difference which filling station and pump you choose, as well as the day/time, e.g. just after the tanker delivers the fuel, or the last drop-off for them, plus the pump that takes from a corner of the underground tanks....?

Whilst most filling stations are well used, so fuel doesn't sit around for ages like it can do in car tanks, I'm wondering if the big underground tanks suffer from poor mixing, especially in the corners, where old fuel may linger and thus give poorer performance if you take fuel from a pump that uses that area of the tank.  I know this is a problem with water tanks and is often the cause of bacteria growth if the inlet and outlet pipes are not on opposite sides as well as top and low level respectively.  Just a guess as regards fuels though.

I read once that you should buy fuel when the temperature is at its lowest as it expands with heat. So first thing in the morning when it has had time to cool all night is probably best. Conversely 9 or 10 pm is probably the worst time. Maybe there is some truth in this

I did read something similar that you should always buy petrol when its coldest outside, though more to do with less evaporating off the nozzle and fuel pipe as you actually fill it, as petrol can vapourise quite easily at daytime temperatures compare to colder nighttime temperatures.  I suspect that the density will vary in the underground tanks to a degree as well, though not as much as you think - the temperature of the ground is relatively constant throughout the year after going down over a meter or two, which is why ground source heat pump systems to provide heating to buildings often have their heat 'source' pipes at that depth.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on March 23, 2018, 11:41:43 PM
I'd read it was a simple as pumps measure volume not quantity as such. Hot fuel = more volume and less for your money, cold fuel more dense and more for your money.

However it's a going beyond the far end of a fart to test that for me... ;)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: moozmooz on March 24, 2018, 12:43:36 AM
Difficult to find corners in underground fuel tanks as they're normally cylindrical cross section with domed ends, so I'd take that theory with a huge pinch of salt.

The temperature/volume idea's also a bit of a non starter. If you look at the volumetric thermal coefficient of expansion for petrol, it's tiny, so you're not going to see any meaningful change across the normal operating temperature range. So the density won't vary much meaning that the mass of fuel you're buying, and therefore the amount of energy you're buying, is as near as damn it constant.

Interestingly, petrol and diesel are about the only fuels I can think of where you're buying blind, as there's no indication of the energy content or calorific value, and the fuel companies aren't keen to tell you either. They'll only quote you over a fairly wide range.

This is one of the things that raises huge doubts about the mileage benefits claimed by some, but, interestingly, not the fuel companies. To get more miles out, you'd need to be putting more energy in - ie higher CV. The only apparent difference is the additive package.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on March 25, 2018, 08:59:45 AM

Interestingly, petrol and diesel are about the only fuels I can think of where you're buying blind, as there's no indication of the energy content or calorific value, and the fuel companies aren't keen to tell you either. They'll only quote you over a fairly wide range.

This is one of the things that raises huge doubts about the mileage benefits claimed by some, but, interestingly, not the fuel companies. To get more miles out, you'd need to be putting more energy in - ie higher CV. The only apparent difference is the additive package.

Surely it's not just the potential energy that matters but how much of it can be released, and how it is released. Calorific  value is determined by burning something in steady state conditions. A combustion engine does not generally operate in steady state conditions, there's a wide range of variables in the process.

Diesel has a lower CV than petrol...so all diesels get worse economy? No because of the energy density. I get what your driving at but the conditions of combustion are also important in determining efficiency as much as "if we burn this on a bench X is released".
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on March 25, 2018, 11:51:25 AM
I'd read it was a simple as pumps measure volume not quantity as such. Hot fuel = more volume and less for your money, cold fuel more dense and more for your money.

However it's a going beyond the far end of a fart to test that for me... ;)

I suspect its a combination of both reasons as they seem equally plausable to me.  That said, I'd rather not have to make a special trip to the local filling station at night just to get the odd percentage point more in fuel/less lost by evaporating, as its likely it'll cost me far more in fuel to get there and back (also the car will be cold and running on a rich mixture for the duration), as well as my local filling stations are far more expensive (3-5p a litre, sometimes more) than the cheapest I normally use, which I've always used on the way/from work, relatives homes or going shopping in a nearby town 10-15 miles away.

I bet it makes just as much difference as to when the tanker fills up the underground tanks - I'm sure you can image how warm the fuel in the tanker gets if your filling station was the last to get its delivery on a hot, sunny day...
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: moozmooz on March 26, 2018, 01:36:18 AM
You can get some information from BS EN 228 : 2008 for petrol and BS EN 590 for diesel.
The differences in quoted CV (taken form ESSO technical bulletins) - 47.48 MJ/kg for 95 RON, 47.46 MJ/kg for 97 RON, and 46.0 MJ/kg for diesel - clearly don't reflect the differences in MPG you'd expect between petrol and diesel, but then you wouldn't expect it to as they're totally different fuels that have markedly different combustion characteristics.

The CV used to be measured by burning, in the case of gas, in contraptions such as Cutler - Hammer calorimeters, which measured the temperature rise in a water bath achieved by burning a precisely measured volume of gas. Large cumbersome objects that were susceptible to draughts, variation in water quality, dirt, atmospheric pressure to name but a few.
It's virtually standard practice now for CV to be determined by analysis and calculation based on CV of individual components, giving more reliable and consistent absolute and comparative measurements.

As to real world engines burning petrol, the biggest variables involved are between types of engines and use. The way the fuel is burnt is largely out of the hands of the fuel manufacturer. They provide a 'one size fits all' product.
For example, looking at my 2 Mazdas, Gen 1 and Gen 3, Gen 1 is faster revving, shorter stroke, lower compression ratio, so what's happening during the combustion stroke is drastically different between the two.

Which all takes us back to why fuel companies are extremely careful about making claims as to what benefits you may see.

You'll doubtless have seen the adverts about Lidl wine being made on an oil rig. You'd probably (I hope) accept that it's a ridiculous scenario thought up by an overpaid twit in an advertising agency, but there are plenty of people out there who still believe supermarket fuel is made in a dodgy, but extremely well hidden, back street refinery. Maybe the advertising man's not such a twit after all!

The reality is that all fuels come from a relatively small, and getting smaller, number of refineries. The only differences at the pumps are the detergent packages, branding and price. You pay your money and you take your choice.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on March 26, 2018, 01:34:43 PM
I guess the question would be do you expect the car to run the same on 92 as it does on 95? And if you don't why you wouldn't expect a similar difference between 95 and 98 in an engine that can detect differences in knock and adjust accordingly?

Obviously the car is not set up to run 92..but by your logic it should. It's all just a different addictive mix after all.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: moozmooz on March 26, 2018, 04:21:59 PM
92? 98? And what's this addictive mix? Have you been sniffing your fuel tank? :)

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on March 26, 2018, 04:30:35 PM
I need to sack my proof reader..

Ah hem, additive and I'm referring to the RON numbers.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Alfisto on March 31, 2018, 09:22:25 AM
I have a 2016 2 litre 120ps with iStop. I noticed on here a few days ago that someone has turned the iStop off and achieved better fuel economy. Is this usual.

I've done about 15500 in mine and the fuel economy meter says it has saved 125 miles, approximately 8%. does this seem reasonable compared to others.

I do pretty general type driving, mixed town and long distance and long and short journeys.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on April 07, 2018, 08:52:49 PM
I have a 2016 2 litre 120ps with iStop. I noticed on here a few days ago that someone has turned the iStop off and achieved better fuel economy. Is this usual.

I've done about 15500 in mine and the fuel economy meter says it has saved 125 miles, approximately 8%. does this seem reasonable compared to others.

I do pretty general type driving, mixed town and long distance and long and short journeys.

I wouldn't be surprised if the iStop works far better when you're making a few, but lengthy stops in traffic, rather than lots of short stops where it just engages for a few seconds before restarting the engine.  Once the system is depleted, it then takes battery power instead (I think) to recharge itself, which will need itself to be topped up by using more fuel to recharge it via the alternator.  Not particular sure, but I do recall reading something like this before, here or elsewhere.  I'm sure someone with better knowledge of the system can either confirm this or correct me.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on April 07, 2018, 09:02:13 PM
I guess the question would be do you expect the car to run the same on 92 as it does on 95? And if you don't why you wouldn't expect a similar difference between 95 and 98 in an engine that can detect differences in knock and adjust accordingly?

Obviously the car is not set up to run 92..but by your logic it should. It's all just a different addictive mix after all.

I think the 3 can run on lower octane fuels, as this often occurs in poorer countries where standard 95Ron octane fuel is (to the locals) very expensive.  Whether this is due to a factory setting change for these countries markets or all the models have knock sensors, I'm not sure.  My manual says its designed primarily for 95Ron (as its measured in the UK).  I may still email Mazda to ask (my dealership didn't really know) whether the mk1 or 2 has one fitted (I'm sure the MPS and mk3 does).

My car's small, but notceable increase in mpg since I've been using 97/98 Ron fuel (mainly Shell, but my last fill-up was Sainsbury's 97Ron) may have been due to the Shell fuel and the Redex cleaning the injectors, though my mainly longer distance driving (almost no short trips throughout its life) at 60-70 mph means the injectors shouldn't be in that bad a nick anyway, even after 12 years use.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on April 07, 2018, 11:19:50 PM
The 1.6 does have a knock sensor. I imagine they alter the map based on the original point of sale, if it's being sold in the UK it doesn't need to run on less than 95, if it's being sold in Egypt it'll need to run on 92..I would imagine the base timing on both would be set differently while the degree of adjustment available to the management system remains the same (base timing + or - so many degrees).
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: mnevis on April 23, 2018, 11:10:40 AM
480 miles per tankful.  Average 40 mpg.   Almost exactly 120 miles per quarter tankful according to the fuel gauge.  Mixed driving.  Narrow rural country roads.  Fast 'A' roads single and dual-carriageway.  Town driving but not 'driving across Manchester in rush hour' type of towns.  Very little motorway driving.   2005 1.6 Petrol Sakata.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on April 27, 2018, 02:33:48 PM
480 miles per tankful.  Average 40 mpg.   Almost exactly 120 miles per quarter tankful according to the fuel gauge.  Mixed driving.  Narrow rural country roads.  Fast 'A' roads single and dual-carriageway.  Town driving but not 'driving across Manchester in rush hour' type of towns.  Very little motorway driving.   2005 1.6 Petrol Sakata.

Sounds about right  - very similar to what I get on my 1.6 petrol TS2.  It'll be interesting to see what mine changes to when I:

I've already been running (admitedly on not much driving in the last year, but still on long runs) it on V-Power or supermarket 97Ron petrol and used a 4-shot bottle of redex to (hopefully) clean the injectors and valves (to a degree), so it'll be interesting (assuing I do everything correctly!) what the result is.  I'm not changing the wheels and tyres to get better mpg (they should do to a degree) but more for improving ride comfort whilst getting some winter abilities from the CCs.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: 3spav on November 12, 2018, 04:48:35 PM
New Member 3spav and my first Mazda

2018 Mazda 3 SportNav 2.2D Auto
Mileage 8000
Av mpg 40   Town/N Yorks 36   Mway 44  Computer 1.4 optimistic
Love the car but its impossible to lock in as higher gear as I would like on this gearbox to save on diesel.
Title: MPG update
Post by: google09 on January 29, 2019, 11:50:36 AM
Hello All,
Not been on for a year, so thought I’d update you with my latest mpg figures.

Mileage : 24,092
Mpg : 43.5 (dash readout and not changed since new)
istop saving : 72.5 mpg
Currently 60% motorway and 40% urban

Not sure if it’s helpful to anyone, but there it is anyway
Regards to all,
google09

Title: Re: The Mazda 3 Fuel Economy Thread
Post by: DaveF352 on February 27, 2019, 08:56:33 PM
Hello all. I’m thinking of joining the Mazda 3 clan and have my eyes  on a 2015 2.0 SEL-Nav. Can anyone advise me on likely mileage per tank please?
The salesman initially said 350 miles per tank, which works out to roughly 31mpg I think....however when I asked again he came back with 622 miles which seems excessive....however that was based on the official Mazda mpg figures they quote. Real world is going to be somewhere between and obviously all depends on how you drive and the types of roads.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Alfisto on February 28, 2019, 08:53:11 AM
I've got a 2016 2.0 litre 120 ps and I get about 400/430 general running. If it's all local stuff then down to about 380
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: hanix on February 28, 2019, 09:24:26 AM
General motoring I get about 42 mpg on Tesco Momentum fuel. My 1.25 Fiesta returns about 37 mpg for the same sort of motoring.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: red_imps_2003 on February 28, 2019, 11:37:08 AM
Hello all. I’m thinking of joining the Mazda 3 clan and have my eyes  on a 2015 2.0 SEL-Nav. Can anyone advise me on likely mileage per tank please?
The salesman initially said 350 miles per tank, which works out to roughly 31mpg I think....however when I asked again he came back with 622 miles which seems excessive....however that was based on the official Mazda mpg figures they quote. Real world is going to be somewhere between and obviously all depends on how you drive and the types of roads.
The Honest John real mpg site is really useful for this kind of information (https://www.honestjohn.co.uk/realmpg/mazda/3-2014). I am not certain, though, whether people who submit always use the brim-to-brim method for their data or whether they are reporting what the car's display tells them. My display consistently reports 3-4 mpg higher than the brim-to-brim checks. Others may find theirs match more closely, I don't know. I trust the Honest John page not so much because of the name but because the MPG figures stated there match my own fairly closely for the two cars for which I have my own data. I imagine the average from a range of users is likely to be closer to the 'truth' than individual results from two or three owners submitted on a form. MPG for the same model can vary quite wildly between individuals, dependent on a whole range of factors, as I am sure you are already aware.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on February 28, 2019, 02:30:55 PM
I too use the HJ website (an have been a member there for over 15 years) and the 'Real mpg' details are a better aggregated average figure than the manufacturers give.  I've given the data for my (older) car on that site and do use the 'brim-to-brim' method.

Bear in mind (OP) that as it's an average, you'll need to add or subtract a percentage (max of 20% in extreme cases) if you don't do a reasonable 'mix' of urban and motorway type driving.  I would generally say that most people using that model will get somewhere in the 38-47mpg range.  As others have said, trip computers mostly over-estimate the mpg by up to 5%, sometimes 10% if you're unlucky. Trip computers' figures are really only a guide.

What you can get out of a tank, other than the type of driving you do and how you actually drive the car (heavy or light footed makes a large difference, including with the brakes), really does depend on how far you're prepared to go once the low fuel warning light comes on.  For the avaergae figure of about 43mpg and a 51 litre tank, you, in theory could get about (average) 480 miles out of it if you completely emptied it.  Obviously that wouldn't be very good for the engine and unsafe if it happened whilst doing 70+ on the motorway (trust me, I know - it happened to me in my previous car when I forgot my warning light was on and ran out of fuel on the A1).

Assuming you'd get fuel roughly when the warning light goes on (somewhere between 5 and 7 litres [35 - 60 miles] of fuel left is my guess), that probably means you could get about 420 - 430 miles out of a tank on average.  About 370 - 380 miles in winter (ave) and about 450 - 470 miles in warmer weather (ave).  I get about 40.5mpg out of my old gen-1 1.6 petrol (better than most) and about the same miles as I've quoted above, but that's because my car has a 55 litre fuel tank, and the gen-3 car only has a 51 litre tank.

I'm sure if you tootle around on a nice flat, empty motorway/dual carriageway at 50-55 in top on a warm (not hot - no A/C required) day with just you in the car, you could get 50mpg out of your car.  But certainly NOT the 622 miles the dealer quotes.  The 1.5 diesel could on a nice long run with little traffic.  Unfortunately, Mazda diesels don't have anywhere near as good a reputation for reliability as their petrol counterparts (rotary engine aside), though that is complicated by them being used too often for short trips from cold and people not realising the DPF is actively regenerating and they turn off the engine because they've reached their destination, the problems associated are well documented on HJ's site in the Good & Bad section of the car's review.  No such problems with the petrol version.

Only get a diesel if it's got a FSH from a reputable main dealer (some can be dodgy) and the dealer will warrant the DPF for at least a year, but also only get one if the type of driving warrants one - predominantly long trips (20 miles+) on faster flowing roads so its always warmed up so that the DPF can passively regen as much as possible.  If you do go for one, make sure when you reach your destination on each trip that you NEVER turn the engine off straight away - open the door and try and see if you can smell a burning smell coming from under the car - if so, the DPF is actively regenrating and you'll need to keep driving (around) until it is finished - this could be between 10 and 15 mins.  This is the reason why modern diesels (of nearly all makes) are not suited to predominantly urban driving/short trips from cold - their DPFs can easily/quickly clog up and eventually have to be replaced when cleaning methods don't work.  The Mazda diesels (especially the 2.2) also has had problems associated with this when diesel used to burn off the particluates in the DPF (active regen) is not fully used (e.g. when stopping the car) and it sinks into the oil sump, contaminating the oil and raising its level.  Again, not good for the car.

Basically, if you don't do 20k+ miles a year and/or you do most driving on local slow speed roads (short trips from cold), then buy a petrol version - the mpg penalty won't be as high because diesels don't warm up quickly and thus won't do so well on short trips, they (mostly) cost more to buy and due to their reliability issues, cost more in maintenance than the petrol versions.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: DaveF352 on February 28, 2019, 05:49:40 PM
Hello all. I’m thinking of joining the Mazda 3 clan and have my eyes  on a 2015 2.0 SEL-Nav. Can anyone advise me on likely mileage per tank please?
The salesman initially said 350 miles per tank, which works out to roughly 31mpg I think....however when I asked again he came back with 622 miles which seems excessive....however that was based on the official Mazda mpg figures they quote. Real world is going to be somewhere between and obviously all depends on how you drive and the types of roads.
The Honest John real mpg site is really useful for this kind of information (https://www.honestjohn.co.uk/realmpg/mazda/3-2014). I am not certain, though, whether people who submit always use the brim-to-brim method for their data or whether they are reporting what the car's display tells them. My display consistently reports 3-4 mpg higher than the brim-to-brim checks. Others may find theirs match more closely, I don't know. I trust the Honest John page not so much because of the name but because the MPG figures stated there match my own fairly closely for the two cars for which I have my own data. I imagine the average from a range of users is likely to be closer to the 'truth' than individual results from two or three owners submitted on a form. MPG for the same model can vary quite wildly between individuals, dependent on a whole range of factors, as I am sure you are already aware.

I always used to use the HJ site as my car buying bible but recently it seems full of pop up adverts telling me I’ve won an iPhone or similar and the site just doesn’t load on my iPad that I’ve given up on it. I’ve got pop ups turned off and don’t get them on any other site.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: DaveF352 on February 28, 2019, 05:51:53 PM
Thanks for the replies. I thought 622 was slightly optimistic from the dealer.
I’m going for a petrol one anyway, although the diesel economy is better I don’t do enough miles to justify a 2.2 diesel.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: red_imps_2003 on February 28, 2019, 05:57:25 PM
Aye; the switch between open road driving and urban driving is quite stark. The 'miles left' indicator on my dash generally moves roughly in line with my 'miles used' indicator throughout most of the week when I am commuting on mainly A and M roads. Suddenly the 'miles left' indicator falls off a cliff over the weekend when I am mainly doing short journeys and on more urban roads. My highest recorded MPGs have all been on family holidays where most of the miles on a tank full have been coasting on motorways. In those instances the brim-to-brim has typically been 4 or 5mpg higher than average despite ferrying three additional bodies and a boot stuffed to the brim with crap essential holiday wares.

As an aside, the point Engineer Andy makes about not ignoring the fuel warning light is a good one. It's a bit annoying that there is clearly several litres left in the tank when the 'miles left' indicator is getting perilously close to zero but I always top up either as soon as it does or a little before if I can these days. I went through a phase where I refilled weekly and only ever topped up to half way on the assumption that I was generally ferrying less weight (in fuel on board) around that way and thus my car was being more efficient. However, I read about the possibility of sediment at the bottom of the fuel tank and had a re-think. It reminded me of a time some 35 years ago when the family car ended up running on fumes during a long journey out in the sticks and after we topped up it started hesitating (mis-firing?) occasionally. Although we had the fuel lines flushed to try and sort it out the car was never the same after that. Of course, the two things may not even be connected but these days I would rather not take the unnecessary risk.
Title: Re: MPG update
Post by: bobmax on March 01, 2019, 10:32:39 AM
Hello All,
Not been on for a year, so thought I’d update you with my latest mpg figures.

Mileage : 24,092
Mpg : 43.5 (dash readout and not changed since new)
istop saving : 72.5 mpg
Currently 60% motorway and 40% urban

Not sure if it’s helpful to anyone, but there it is anyway
Regards to all,
google09

43.5 That's good.
Mine has been on 39.8 for months, although did go up to 44 after a long drive. It does depend on where I'm driving.
It's around town at home at the moment.
I usually drive at a steady 60mph on the motorway etc (I believe that's the sweet spot?)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on March 01, 2019, 08:12:22 PM
Thanks for the replies. I thought 622 was slightly optimistic from the dealer.
I’m going for a petrol one anyway, although the diesel economy is better I don’t do enough miles to justify a 2.2 diesel.

Good thinking.  BTW - if you want to access the Honest John website without getting all the ads (at least on a desktop/laptop computer), using ad/popup blockers.  I use Firefox as my browser and have uBlock origin, AdGuard Adblocker and Ghostery (free) add-ons to stop ads (including popups/unders) and tracking respectively.  Works very well unless you have an older/slower computer; with a tablet, again, age of unit and performance can make a big difference - my 'old' Galaxy Tab 3 is a little slow, but the HJ website (I don't use the phone version) work reasonably well with those adblockers on the same browser (Android version).  I suspect Chrome has some similar apps/add-ons.

With these, all the rubbish ads go.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Coypars on April 26, 2019, 12:16:49 PM
Just drove from Elgin to fife and a mixture of A and motorway roads averaged 45 so quite good from a 2.0 petrol automatic.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: red_imps_2003 on April 30, 2019, 12:46:23 PM
I've been monitoring my 1.6 d TS2 (59 plate) using brim-to-brim for 15 months now (recording using the 'Fuelio' app). The average over that time is 50.6mpg - not far of the figure reported in the Honest John real mpg page (49.5). It has been fairly typical to see 48 - 50 over the coldest months and 51 - 52 over the warmest ones. The average is probably raised very slightly by the odd long journey I have done on motorways and steady A-roads, where the MPG at re-fill was typically mid fifties. The highest I have recorded over a full tank was 57.89. I've varied a lot between supermarket stuff and BP/Shell premium diesels with no obvious correlation with changes in mpg at the next re-fill. That said, I don't think I've filled up with premium fuels consecutively enough times to have minimised contamination from the previous cheap stuff. I'm not attuned with my car enough  to tell whether there has been any variation in 'performance' (engine note, lumpiness, responsiveness). There was a period where it seemed to hesitate upon first leaving the house in the morning but I don't think it coincided with any particular fuel.

I've also tried a number of other changes over that time too, so it would be impossible to attribute any changes, perceived or otherwise, directly to fuel anyhow. I had a generic remap four months in, a terraclean three months after that, used Redex, Millers Ecomax, ZX1 Extralube, and two-stroke engine oil in the fuel tank, as well as ZX1 Extralube in the oil. None of which made any perceptible difference either to the fuel economy or the general running (except the remap, which has improved acceleration in the mid range and higher up quite noticeably). I also put a bottle of Wynn's DPF cleaner in the fuel tank three weeks back and the only perceptible effect of that was a complete shutdown twice in quick succession as I accelerated hard off a roundabout on the way in to work a couple of days later. Dunno what that was about but it hasn't happened again since, thankfully.

Of course, none of this provides any indication what differences are happening on the insides in terms of gunk build-up and wear-and-tear.
Just to update that since I posted last - just over a year ago - my average fuel economy has risen to 52.3 (i.e over the full 29 months of ownership since I started recording). My last five tankfuls have all been in the mid to high fifties and even over winter there have tended to be more low fifties than late forties. I attribute this mainly to lowering my cruising speed by 2-3mph on the 8 miles or so of national speed limit motorway on outward and return legs of my commute. I used to set the cruise control right on the 70mph mark but now generally leave it in the space between that and the 65mph one. My urban driving remains the same as always and a few miles to work and back are 50mph stretches, where I keep the needle right on the 50 mark. It's possible that the Millers Ecomax I have been using more regularly plays a small role but it is more likely to be the slightly lower average speed. I do tend to let speed build up naturally when heading downhill and try to read the road ahead to minimise braking or complete stops, but this has always been the case and not changed over the past 14 months.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on May 16, 2019, 06:49:12 PM
My petrol is still nice and healthy apparently given theres exactly 4 years between "last" and "best".

(https://www.fiatforum.com/gallery/data/1662/medium/Screenshot_20190516-182246_Chrome.jpg)
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on May 17, 2019, 08:33:42 PM
Nice mpg app Steven - what's it on?  I just made up a spreadsheet for mine on Excel: it work fine but isn't so nice looking as yours.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on May 17, 2019, 08:41:54 PM
It's just the Fuelly website viewed on my phone (click my signature for the full version). It's handy because I can literally update it on the forecourt.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: StevenRB45 on July 10, 2019, 11:24:03 AM
(https://www.fiatforum.com/gallery/data/1662/medium/Screenshot_20190710-111614_Chrome.jpg)

New PB...not bad given again I'm not hypermiling. So achieved 3 up with a boot full of crap travelling at NSL+. Also climate control and a/c on whole time.

Trip computer only said 44.4mpg oddly but it gets pessimistic if you get stuck in traffic a bit i find.

Tbf I could have cheated on this one and filled up mid week so there would have been no round the the doors in involved at which point I suspect it would have been nudging 47-48 but given the official figure is 43 for this car I'll take that.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: Engineer Andy on August 01, 2019, 01:30:47 PM
I'm recently back from holiday in the West Country and my gen-1 1.6 petrol (just me in it, but laden with suitcase, full rucksack, provisions [self-catering holiday] and golf bag and trolley [full boot]) managed to achieve around the 44mpg mark on Ron95.  Not bad for a 13yo car (essentially the same as 10 years+ ago), including mooching around Cornwall on many country lanes as well as the mainly motorway/dual carriageway (at 70mph most of the time) journey there and back, with the A/C on throughout. Still averaging about 40.5mpg over the long term, similar to StevenRB45's car.  Just shows how decent an engine it is in the long term, especially when well looked after.

Unlike many of the latest cars on sale today, those from the late 90s and up to around/just after 2010 often seem to exceed their expected (official) mpg, even in mixed driving.
Title: Re: The Mazda 3 Fuel Economy Thread
Post by: andyl on September 03, 2019, 08:27:55 AM
Recently saw on the ( slightly optimistic ) fuel computer 59.9 mpg running on A roads and a bit of urban.

I have had it in the past when an older diesel engine gets more economical. My wife's 2004 Honda Accord had almost 140K on the clock after 3 years and on a 70mph motorway cruise was returning 64 mpg!