what oil does everybody reccomend, the oil filler cap says castrol but i my dealer told me mobil 1 was whats up

 

DUUDDEEEEEE ARE you serious? theres only 1 oil that fits that motor, the special high performance OIL forthe RS4 from Audi, and only thAT.

)

 

Is there a general API specification requirement listed in the Owner's Manual (in addition to the recommended weight and viscosity)? If so, I'd just compare that to the API rating on the Mobil 1 label. I'd do that before taking your dealer's word for it. If the Manual just says "use Audi oil only" and not give any specific requirements I'd say there's quite a conspiracy going on considering how much oil the S4's and RS4s consume. As long as Mobil 1 synthetic oil's weight and viscoisty were the same as the Audi variant, I'd have no problem using it. But thats just my opinion - its your engine.

 

Stop by your local Kragen's or Autozone and just ask the guy behind the "computer with an answer to every auto question" whick oil you need for an RS4. Simple.

Might be able to even check online...

 

not really but nice try

 

If the oil is for the new B7 RS4, then there is no API requirement, as the API specifications are just not good enough for the requirements of all the latest VAG motors.

I'm guessing you are from the US, because in UK and Europe, if you go to your dealer with any warranty complaint on your engine, the garage will carry out oil analysis on the sump oil, and if it does not meet the standard as listed in the owners manual, the warranty claim is rejected!

Just use any make of oil which has been approved by VW to meet the required standard. I think AudiUSA.com has a downloadable PDF, listing all the approved oils.

Rgds

 

owners manual specifies vw 502 specs. So Mobil 1 0w40 meets this and it will be what I use.

 

Always use Mobil 1 regardless

 

Erm, the manual actually states VW504.00 as the preferred oil standard, with 502.00 being a "lesser" quality (and considerably older specification).

Being as the B7 RS4 isa modern engine, being highly stressed, with a high-rev red line, and FSI technology, why do you recommend using the older, less capable502 standard oils??

 

Audi approved oil meeting VW 502.00 specifications listed here:

http://www.audiusa.com/etc/medialib/....0004.File.pdf