aharm

My 2007 A3 2.0L is burning through about a quart of synthetic oil every 1,000 miles. Does anyone have any idea why this is happening. I am putting Mobil 1 5w-30 in it. Please help!

uberwgn

Well, to start with, that oil doesn't meet the engine mfr's requirements. Switch to one of the xW-40 502.00 compliant oils.

Do you know how many miles on the car. Are U the original owner?

Welcome aboard, A!

aharm

thanks! hopefully that will work! I am the second owner and it has 25,000 miles on it. My mechanic just lost my business for telling me it takes 5w-30!

uberwgn

It's a quality standard, not weight-specific. The cars require an oil meeting VAG 502.00 and have so for years.

The Mobil1 5W30 is probably on the thinner end of the spectrum, while the German mfrs tend to favor "thicker" oils and set a specific measurement for that parameter. They recommend a 5W40 (meeting 502.00 spec) when available. See Owner's Manual for additional references.

Some cars will have high oil consumption when they suffer a "soft" break in. The rings never end up seating as intended. There is a TSB on evaluating oil consumption. Sounds like your case is an extreme.

India Whiskey Charlie

Simple. It's because your engine was not properly broken-in and your piston rings never seated for a proper seal.

India Whiskey Charlie

That does not mean the engine should burn oil.

India Whiskey Charlie

Current List of Audi Approved Oils:

http://microsites.audiusa.com/ngw/09..._1997-2012.pdf

seanc1970

I have an '08 with 22k on the odometer and the car burning through oil at a slower rate than yours, but still too much. Dealer replaced rings, all better.

aharm

The car isn't under warranty anymore, is a piston ring replacement a expensive repair? Thanks for all the help guys.

EdRich

The Marietta, GA dealership (excellent dealership) told me yesterday that Audi is saying that burning a quart of oil at 1,000 miles or below is an issue. Anything above that is "normal". The tech told me that this is a very common problem. I have to put in a quart every 1,500 miles or so. Another blemish my perception of Audi quality. This is our third and probably not final Audi, but...