You know, after doing some further reading on Redline and other's websites
it looks like the Redline NS might be a better choice for the regular
Vanagon with it's open diff.  But I already got the MT90 headed this way, so
that is what I'll be using for this time.
  They say the NS-type fluids have a friction modifer to make them less(?)
slippery so that the syncros in the gearbox will engage better, resulting in
easier downshifts, etc.  I guess that also helps the Limited Slip
differential, which works with a simple clutch type stack, get a little more
grip somehow.  Redline also offers a stand-alone  'Friction Modifier' in
like a pint bottle that you can add to your gear oil to increase the grip of
your syncros or to help break in a brand new tranny...
  That might be worth looking into if you are encountering difficult
shifting and you know it isn't your clutch or your linkage..
Not a recomendation, just an observation from someone who hasn't actually
done anything with it..

  Don Hanson

On Wed, May 13, 2009 at 5:58 PM, Allan Streib <streib@cs.indiana.edu> wrote:

> Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM> writes:
>
> > They are even saying right now, that MT-90 is intended for limited
> > slip differentials, and is not really the right oil to use, and that
> > it doesn't protect as well as a gear oil intended for where they is
> > not a limited slip, would be more appropriate for our manual trans
> > vanagons.
> >
> > I'm going to get some Swepco 201 gear oil myself.  That's 'the stuff'
> > in my opinion, currently. And I have used lots of it before , and nary
> > a problem
>
> Redline makes a non-slip variation, labeled 75W90 NS, it is a GL-5 rated
> gear oil.
>
> Allan
> --
> 1991 Vanagon GL
>