What's the diff?

[MHLIGGINS <MHLIGGINS@aol.com>]

     1988 5000S n/a, auto

     Quick question - how much fluid goes in the final drive behind an
automatic?  We have two quarts of Red Line, but don't know how much to put in.
Couldn't find a quantity in the owner's manual or in Bentley.  GPR couldn't
tell me, the Audi in Nashville WOULDN'T tell me, my tech in Nashville didn't
remember, and I never did know.

     We were hoping to do this in the morning, didn't know it was going to be
so hard to find the info.  Any help appreciated.

     Thanks.
     --ml
     Still Confused in Bucksnort.