I started using Mobil 1 ATF in my '85 back in 1999.  Made a host of other
improvements at around the same time with the end result of slightly
increasing my gas mileage.  The tranny was a little overdue for a fluid
change at the time.  It shifted smoother and quieted down just a bit after
the change.  It's time to do it again and I'll be filling it with Mobil 1
again.  I can't attribute the mileage improvement directly to the tranny
fluid but it certainly didn't hurt.

I have no first hand knowledge of the Cherokee trans but a friend of mine
had no end of trouble with a pretty new Dodge Ram truck with an automatic --
the dealer rebuilt his twice then replaced it before the truck had 60k
miles.  I suspect that Chrysler has lost direction on their automatics.  I
learned to drive in a '66 Plymouth Valiant with a slant six/automatic.
Abuse is a mild term for what I did to that car.  We never changed the fluid
and when we got rid of it at 110k miles (having been totaled twice) it
shifted smoothly and quietly.

Chuck
'85 Wolfsburg Westy - 'Roland the Road Buffalo'

on 2/25/03 11:00 PM, Automatic digest processor at
LISTSERV@GERRY.VANAGON.COM wrote:

> Date:    Tue, 25 Feb 2003 21:14:35 -0600
> From:    Larry Alofs <lalofs@RCN.COM>
> Subject: Re: Mobil 1 Synthetic ATF?
>
> raul lince wrote:
>>
>> Hello fellow vanagon owner,  My 89 van needs some new atf.  I am thinking
>> about using mobil 1 atf  is the Dexron III and dexron IIE rating compatible
>> with our Vanagon dexron II rating?  thanx for reading!
>> Roe  '89 wolfie    "Moby Dick"
>>
>
> I have read complaints from Jeep cherokee owners about a significant
> drop in gas mileage when using synthetic ATF.
>
> Has anyone else heard anything about this?
>
> Larry A.