Definitely alleged.  I have yet to see any modern gear oil corrode copper
parts in a tranny that was not filled with water. Given a choice or
protecting the synchronizers or the ring and pinion, my choice is the
GL-5. I have also yet to see it cause shifting problems in a healthy
tranny with a properly working clutch.

My rebuilds get the Mobile SHC 75w-90.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Todd Last
Sent: Friday, October 05, 2007 1:40 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Mobil I ... negative..(from digest)

No, but you don't want to use it if it has a GL-5 rating.  (Alledgedly the
additive in GL-5 attacks the transmission synchros)
 -------------- Original message ----------------------
From: Clint Kolda <clint_kolda@YAHOO.COM>
> I've read all sides of the Mobil 1 correspondence this week.  Does
anyone have
> an opinion on Mobil 1 gear oil for the transaxle?  I found some 75W90 on
> clearance the other day and I'm curious if it is a good choice for a
Vanagon
> 2wd.
>
>   Clint