Engine Oil Flush?

BUDFORCE

BUDFORCE

BUDFORCE

Soldato
Joined
3 May 2012
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Discuss, good? Bad? Waste of money?

Only reason I ask is I am going to do the Mrs Fiesta Mk7 1.4 petrol soon.

I recently used in on my SV650 (motorcycle) a little while back for the first time but only cus I happened to stumble on a bottle of it once, I didnt specifically go out to buy it.

Does it actually do anything? I mean I know what is it supposed to do, but in practice?
 
I'd say it can do harm personally. You'd be better off buying cheap cheap oil, filling with that then run for 100 miles and change to good stuff afterwards.

Or just change your oil every 5k and not worry.
 
Yeah I mean my bike seems fine, although on that due to the location of the sump drain (and the fact you can tip a motorcycle right over) you can really drain the vast majority of all the oil out.
 
no don't see any need - make sure you empty from sump when hot, change filter too,
i usually remove one wheel to access plug/align pan .. you can tip car on the jack to get the last drop,
- putting the plug back in for some other non-free chemical, disposing of that sounds a faff
 
It's probably worth doing on gearboxes and difs (especially the first oil change as there will be metal fragments in there from breaking in), but not an engine.
 
It all depends on if you have neglected regular oil changes. If not then a flush is not needed, if it hasn't been changed regular then worth doing, however modern oils don't clump like the mineral oils used to.
 
Surely you also run the risk, of moving sludge to else where in the system. Mind you ive come across a fair engines that have failed due to some sort of sludge build up.
 
Having had an unexplained oil consumption issue on the zafira that the dealer wasn't able to explain, when I got it serviced recently at an independent specialist I went ahead with the flush they offered for £15 or so.
It was specifically explained as an additive added to the old oil, run up to temperature which then helps to break down carbon deposits.
Whilst I can't specifically say that it has or hasn't done anything, the car seems to drive better, hasn't used any oil and seems to offer better fuel economy since.
 
On my old 309 using it washed all the crap out from around the tappets and made it sound like a diesel, mind you that engine was a bag of spanners anyway.

not sure they are really necessary on regularly serviced modern cars. like redex-ing your cylinders, just not something you have to do now.
 
I would never recommend using an engine oil flush unless it a really old engine..

As you never get all the oil flush out of the engine..
 
From what I understand it can seriously mess up seals and gaskets that have remained undisturbed for years (I read this many years ago however so dunnno how it applies to modern cars).
 
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