A4AdMan

5K interval with or without synthetic.

SilverSchwinn

between 5 and 7.5k, m1 0w40

Audi Junkie

Well, Mobil does. In fact, it's a 15,000 miles performance guarantee.

Jimax

I have only used Mobile 1 synthetic 0W-40 since the first oil change. An oil analysis from your specific engine that characterises your driving habits, your environment, etc., is more accurate than any guarantee by a vendor.

Seriously, spend the $20 and get a Blackstone oil analysis done. People spend all this money on oil and filters, yet don't make the small investment to have their specific engine analysed.

Jimax

That's the only time that I actually add oil to my 3.0. I use about 1/2 quart for a track weekend. And yes, I drive the **** out of the car whilst at the track. It lives between 5K and 6500RPM for 20 minutes straight, 4 times a day, times two days.

Audi Junkie

Funny thing about Mobil 1 and UOAs is that Fe tends to be quite high.Did you experience that at all?

Jimax

Granted, I had it done at 65K miles. I now have 83K miles. Also, the make-up oil was due to the two track days that were on that oil change.

<img src="http://pictureposter.audiworld.com/40962/oil_analysis.jpg">

JohnnyQuattros

closer to 6 times faster if you measure in quarts per mile

daily driven: .25 qt / 6.0 tanks / 1400 miles
at the track: .25 qt / 2.7 tanks / 250 miles

this is a swag (scientific wild *** guess) of course

Audi Junkie

Aluminum block?Part of the theory's that Mobil's alkalated napthalene scavenges iron out of deposits

Audi Junkie

btw- the report says 0w-30...is that correct?