I think the general consensus is MT90 for warmer climes, MTL for colder
climes.  Both meet the specs for your tranny (80 weight).  The 75W90 is GL5,
and should only be used in the front diff on a syncro, so watch out for that
one.
bmc  :)
"Faith will move mountains, but you'd better bring a shovel...."

> From: Jeremy Speer <jspeer@POBOX.COM>
> Reply-To: Jeremy Speer <jspeer@POBOX.COM>
> Date: Mon, 11 Mar 2002 09:32:50 -0600
> To: vanagon@GERRY.VANAGON.COM
> Subject: Capacity - Thanks!
>
> Gotta love this... ask a question, answers back in minutes!
>
> So... I'm guessing the heavy weight RedLine MT-90 75-90W is the one I want.
> No mention of GL rating, but this seems to be recommended by many folks.
>
> -jspeer
>