I had similar results.  After the tranny swap, shifting into 2nd was difficult
when the weather turned cooler with the dine GL-4 stuff.  I put the Redline
into the tranny about October and the cold shifting is not only possible, but
smooth.

I ordered a case directly from Redline, except they recommended MT-90 instead
of MTL for the Vanagon.

-Karl

> I have put in Redline MTL gear oil in and now I can shift into second gear
> with NO problems when the tranny is cold.

Karl and Kristina Bloss, Trexlertown, PA
'87 Westfalia Weekender  "Beverley" - 190K miles
http://www.enter.net/~bloss/vw/
PA/NJ Vanagon owner's mailing list: http://www.enter.net/~bloss/vw/pavanagon/