2.0 TFSI Drinking Oil

[Nick1point9]

Deva Link said:

Like thegasman says, I felt quite bad that someone could buy the car not realising what was wrong with it. I often wonder if the car is still doing circuits of auction rings.

I'd be interested to here the opinion of someone involved in car auctions because this must happen a lot; people trading in cars with hideous issues and the buyer sticks them straight back in only for the next person to do the same and so on...

[Chicane-UK]

Has anyone ever got to the bottom of this?

My Octavia VRS (2.0 TFSI) guzzles oil like it's going out of fashion. Giving it some wide open throttle with often give a diesel-esque black haze out of the back. I've read various things suggesting that it's the valve stem seals and also read it's worth changing the PCV valve for the latest version (easy job) - should I just take the car into Skoda and let them have a look (it is under warranty).

I must have done about 6,500 miles since buying and am close to having gone through about 2.5 litres of top ups

[Cupramax]

Acceptable consumption is 1 litre per thousand kilometres so your way below that. My old A3 Sportback used to drink it like a fish but my A5 with the newer valve lift tfsi never used a drop...

[Philball]

All new cars have long life oil in the from new this does not allow the valve seats to bed in causing the high oil consumption. Nothing major wrong but with out replacing them it will continue, know civic type r to have this and still good at 150k just service it regular.

AndyandChrisGTR said:

Well, just spoken to my local Audi dealer and they tell me that thats fairly normal consumption. Infact he stated that 0.5 ltr every 600 miles is their guideline.... bks!!

Seems very fishy to me. Huwp I'll PM you if thats ok then maybe give you a call a bit later when I finish at work if you can send your number over.

Thanks for the help.

Chris

[liner33]

Valve seats ??

The valve seats on engines dont have any oil on or near them

[Philball]

Sorry piston rings and oil control ring don't bed in with long life oil bores glaze and piston rings don't seal and oil gets burnt off.

[liner33]

Both my Superb and Octavia came with long life oil and neither use very much if any in between 18,000 mile services

I've always been told engines dont bed in well with SYNTHETIC oil , this was certainly the case with older engines but modern manufacturing techniques have turned this around and running in is far less important

Some engines have had issues with faulty injectors flooding the cylinder and flushing away the lubrication making for accelerated wear and increase oil consumption

[Philball]

I have known this on Honda civic r but my s3 2008 is fine on oil.

[Hub]

Yep, my Golf GTI uses a lot of oil - probably 1 litre every 2,500-3,000 miles. I put it down to the fact I do a lot of town driving and short-ish trips. I do notice a diesel-like cloud when I get the chance to stretch the legs after a few days of pootling!

[SuperchargedVR6]

Black smoke is excess fuel being burned. It's a turbo engine, you will get that.

Bright blue smoke is excess oil being burned.

I've yet to see a TFSI engine chuck out blue smoke, but I've seen plenty belch out black smoke. I keep telling people they are not as economical as claimed. The proof is plain to see when you follow one

[Bitzer]

I've never seen black smoke from a 2.0T.

I think the fuel economy is good, mine is mid 30s over 20K. High 30s on a run is not too difficult in the morning rush hour.

[Neil_M]

Hi Folks,

I have an '09 A5 with "interesting" oil consumption figures too.

I'll be looking at the breather system / PCV to see if there is much change made there.

I hope to report back with any changes or info I get.

Thanks,
Neil

[jwo]

My 2.0t (a4 - my12 facelift) has had one segment on the digital oil meter (no dipstick!) in over 5,000 miles from new. Was run in properly but also explored the higher rev range towards end of process. Seems that the engines can vary massively in oil consumption....