15k service coming up on my 3.2 - Anyone bring their own oil to the dealer?
Do they generally allow you to bring in synthetics?
If you've used royal purple, did you notice an appreciable performance/efficiency change?
If Royal Purple is not meeting standards set as described in your owner's manual for Audi, it may interfere with your warranty. The bigger question would seem to be, if it is not meeting standards set, why is it being used?
As for the Haldex, I would let the dealer do the filter and lubricant there and not interfere with Audi recommendations.
Trending Topics
Bringing Audi to Life for Audi Fans


