Hello all, i am ready to go with an oil change on my VRs TDI. I picked up a bottle of Millers Engine flush, says on bottle safe to use on all engines, pour in when engine is up to running temperature and idle for 20 mins then drain, change out filter and refill with fresh oil.

My question is will it be safe to use on my car, dont want to wreck anything.

My concern is my dpf and the sensors used for calculating oil quality and maybe even the injectors.

Search came back wi no results so would be interested to hear if anyone uses this or can enlighten me a little

I've used it before with good results particularly with sticky tappets. One thing to note is that it can be at idle only! The temperature of the surfaces is increased greatly, as well as flow and it has some aggressive chemicals. If you have any dou btw, don't bother, but I can't see it doing any harm, other than freeing up a lot of sludge. Regular changes in my mind negates the need for a flush, depends on service history.

First service at 14k second at 29k currently at 39k and maxidot says 9k till service is due so the oil has been in for coming up 10k miles, i feel oil over a year old and over 10k miles is past its best before date so there must be a lot of build up in there considering its service intervals.

I might just run it for 10 mins then drain

well my thinking would be,

If the flush is designed to get the stuff that is sticking to the engine part(so not running about in the oil) then a short run may loosen it but not actualy detach it into the flushing oil.

Drain and refill with fresh oil that finishes the job.

End result new oil with some of the rubish floating around in it.

So to be thorough, double oil change, double flush. Where does one stop

Skoda specifically advise against using engine flush, as do most major manufacturers with good reason.

Get the car nice and hot, leave it for half and hour and drop your own oil using the sump plug, this is the best way to clear the engine of any deposits.

Skoda specifically advise against using engine flush, as do most major manufacturers with good reason.

Get the car nice and hot, leave it for half and hour and drop your own oil using the sump plug, this is the best way to clear the engine of any deposits.

Think it's something to do with the Injectors/loom been bathed in oil. Even though you drain the oil out some oil will remain in the Engine to protect vital parts, using a flush will remove this oil.

Not a huge fan of the advice on Honest John but this remains an interesting read...

http://www.honestjohn.co.uk/forum/post/index.htm?t=21313

Hmm looks like i could do more damage than good with this engine flush, it just strikes me that all these major oil companies (Millers, Wynns, Redex) sell this stuff, i would have thought they know whats best and i would seriously doubt thew know if it does do harm but market it up any just to make some money

I don't use flush, it stirs up too much coke which gets stuck in the oil pick up strainer. Much better to give it regular oil changes.

Which is why my vRS is having its first oil change this week (£88 at the dealers while I wait) and will be reset to fixed regime. I do about 8.5K per year and so much prefer an annual oil change.

Paul