Author Topic: engine flush??  (Read 197 times)

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Offline bobmax

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engine flush??
« on: November 02, 2018, 10:47:27 AM »
My local dealership called me to say my 4th year service is due.
I asked what was entailed and the price, He said it's £269.
They will do the normal service (Oil, filter etc) but he also said an Engine flush through.
I'd not heard of that b/4. Any ideas what is meant by that?
Familiarity breeds contempt - and children

Offline audioslaven

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Re: engine flush??
« Reply #1 on: November 02, 2018, 09:01:13 PM »
My local dealership called me to say my 4th year service is due.
I asked what was entailed and the price, He said it's £269.
They will do the normal service (Oil, filter etc) but he also said an Engine flush through.
I'd not heard of that b/4.
 

Basically they put a chemical down the engine to wash it. The engine is left to idle for a period of time and then the oil is dropped. I think if you do regular services it is not required. Some say it can cause more hassle as it will dislodge carbon in the engine and may clog filters which could damage the engine.



Edit to repair quote marks
« Last Edit: November 03, 2018, 09:00:00 AM by Willpower »

Offline Engineer Andy

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Re: engine flush??
« Reply #2 on: November 03, 2018, 08:21:50 PM »
My local dealership called me to say my 4th year service is due.
I asked what was entailed and the price, He said it's £269.
They will do the normal service (Oil, filter etc) but he also said an Engine flush through.
I'd not heard of that b/4.
 

Basically they put a chemical down the engine to wash it. The engine is left to idle for a period of time and then the oil is dropped. I think if you do regular services it is not required. Some say it can cause more hassle as it will dislodge carbon in the engine and may clog filters which could damage the engine.

Edit to repair quote marks

Quite right - YouTube mechanic legend Scotty Kilmer (from the US) doesn't recommend them either for that very reason.  My old Nissan dealership used to do them when I had my Micra serviced there (15 years ago) but stopped doing them in the early 2000s, probably for that very reason, though they didn't say why at the time.  Best to just get quality (manufacturer's recommended grade) oil and filters fitted at least as per the minimum schedule in the handbook and drive the car sympatheically.  If I was doing predominantly urban driving, especially lots of short trips from cold, then I'd get the oil changed twice a year even if the mileage didn't warrant it, as that sort of driving (as well as thrashing it all the time) will likely degrade the oil quicker and lead to more engine wear than not doing so.

I'm lucky that even though I have often done a low annual mileage (under 3k miles), this has always been made up of trips over 10 miles long on faster flowing roads, so it always warms up, negating the need for 6 monthly oil changes.  I probably would do if I owned a high performance version like the MPS or suchlike - oil changes are nothing compared to having to shell out several £0000 for a new engine.

Offline bobmax

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Re: engine flush??
« Reply #3 on: November 04, 2018, 10:02:58 AM »
Thanks for your reply's.
I read a bit about it, and they tend to agree not to have it done.
So, I'll give it a miss  ;)
Familiarity breeds contempt - and children

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Re: engine flush??
« Reply #3 on: November 04, 2018, 10:02:58 AM »