Whatever weight the owner's manual says it takes, I'd use that. You'll definitely want to go with a high quality oil though. I personally use Liqui-moly... I have 192,000 on my 2012 A6, and she's still purring right along, a lot of which in my opinion has to do with the higher end oil.
Liquimoly 5W-40, every 7k kms or 6 months. I buy it myself and get it done by any garage
Liqui Moly 5w-40 every 7k. Do it myself in my driveway ????
I order the right price point of liquimoly because it burns less vs other brands, in my experience
Liqui Moly TopTec 4100 is good and cheap. Castrol oil is, indeed, not worth the money.
I currently use Liqui Moly 5w-40 in my 02 WRX and it loves it.
I like this oil, I believe it was Castrol Syntec from the factory (says so on the oil cap) but it became slightly hard to find and the Liqui Moly has been great oil so whatever. I changed my oil last year at about 9500mi and it didn't even get dark until about 7k miles.
My B9.5 S5 went through a quart about 3000 miles into the last oil change. This oil change that im on now I havent had the light come on and im at about 5000 miles which is when I change oil. I started taking mine to an Indie shop and they use Liqui Moly oil plus they add this little bottle of addative thats supposed to help lubricate the piston rings better.
I run OW-30 Liqui moly that doesn’t burn any oil either.
I use 5w40 liquimoly. No leaks and everything was fine. I changed the oil about 2000km ago and checked tonight to see it very low at the fill line.
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