I'm going to switch my tranny and differential fluids over to Redline or Motul synthetics and was wondering what weights wereAudi recommended for the rear diff, and the 6 speed tranny? Im assuming that the center diff is lubricated by the tranny fluid?

 

Nevermind, I found them... 75-90 for both... nice little tech article writeups. What about the Torsen center? Does that oil drain with the tranny oil? or do I have to drian it seperately?

 

All the diffs have their own fill & drain.

 

yeah, I rounded off the $*%@#$ fill plug on the rear diff trying to get it out... Im not sure what Im going to do now... I got the drain to crack free, but I obviously didnt dump it, since I cant get the fill out...

So the Torsen in the center has its own as well? Also, does it use regular 75-90?