While I wait for my new ring & pinion set, I am still pondering the choices for
gear oil on my Vanagon trans:

Redline MT90 (GL-4) $15 /liter
Pennzoil GL-5 (dealer/repair shop standard) $cheap
VW synthetic $28 /liter

Amsoil makes several gear oils which claim to meet GL2 thru GL5 specs by
using a sulphur free EP additive. Price is about the same as Redline, and
would presumably offer great EP protection for the R&P hypoid gears, while
still avoiding the corrosion issue with the syncro rings. The only thing which is
not explicitly stated is whether it addresses the "friction modifiers" to improve
syncro engagement that Redline uses.

Has anyone explored this avenue? Does Amsoil shift as well as Redline?

========================
Shawn Wright
Computer Systems Manager
Shawnigan Lake School
http://www.sls.bc.ca
swright@sls.bc.ca