What are DSM people running for tranny fluid these days?

[blageo23]

Originally Posted by CarPsyco84

If you wanna wreck diffs, use GM Syncromesh, otherwise if you want actual gear oil redline from map seems to be the cheapest option.

Originally Posted by sleepydsm

I have used Syncromesh for years and everything has been fine. I will be trying a different fluid this year.

2 blown up diffs??...

[CarPsyco84]

Originally Posted by blageo23

2 blown up diffs??...

2? try 3 just with me. When I was young and foolish I ran that junk in my AWD, and after 2 transmissions with numerous issues including wearing 2 center diffs out, and wearing a front diff so bad the wrist pin had lost more than half its diameter in wear before it snapped off and destroyed the trans case, and mutilating a ACT 2600 pressure plate.

The problem is its syncromesh is not gl-4 rated and doesn't have high enough pressure resistance to deal with even normal wear in our trannys let alone abuse.

[sleepydsm]

Pretty sure Syncromesh is rated for GL4.

[s1ngletracker]

My shifting is getting notchy again. I think this time i'm gonna run just MT90, no MTL. What do people think about that?