Red Line told me MTL will work fine in my Vanagon. They are both GL4. That
is the main concern. I don't think the load has anything to do with it. If
in doubt, give them a call or email at their site http://www.redlineoil.com
. I am using MTL per advise on this network plus I called them up. Don't
believe me. Call 1-707-745-6100.

From Red Line:
MTL- Manual Transmission lubricant - a 75W/80W GL-4 gear oil

MT-90 - Manual Transmission lubricant - a 75W90 GL-4 gear oil

Bill

-----Original Message-----
From: Stuart MacMillan <stuart@COBALTGROUP.COM>

>Red Line Oil recommends only the MT-90 for the Vanagon transaxle due the
>its higher loads.  MTL is intended for vehicles that use motor oil or
>ATF in their manual transmissions or transaxles.
>
>I have used MTL in my MGB and MT-90 in the Vanagon for about five years
>now.  Both shift easier, and the synthetics don't thicken as badly in
>cold weather.  I still change it every 50,000 miles.
>
>Be careful with additives, some can be too slick for proper syncro ring
>friction, resulting in grinding shifts.
>
>--
>Stuart MacMillan
>Manager, Case Program
>800-909-8244 ext 208
>
>Getting your share of the Net yet?
>http://www.cobaltgroup.com
>http://www.casedealer.com/demo
>http://www.caseihdealer.com/demo