MU3 5 Speed Trans Fluid
02-09-2009 | 10:52 PM
#1
Thread Starter
Senior Member
Joined: 11-27-2007
Posts: 1,115
From: Austin, Texas
MU3 5 Speed Trans Fluid
Yes, MU3 (not Getrag 
), this is the correct fluid. Might be Castrol Syntrans 75W-85 GL/4. Made in Germany. GM part number 88862472. My cost was $20/quart. Had to let the SS sit for a week while I waited for it, drained the incorrect fluid which was actually a minor benefit, since I got a bit more bronze "glitter" out of the trans.
), this is the correct fluid. Might be Castrol Syntrans 75W-85 GL/4. Made in Germany. GM part number 88862472. My cost was $20/quart. Had to let the SS sit for a week while I waited for it, drained the incorrect fluid which was actually a minor benefit, since I got a bit more bronze "glitter" out of the trans.
02-10-2009 | 08:14 AM
#2
Senior Member
Joined: 03-16-2008
Posts: 662
From: Cleveland, Ohio
Thanks for the pic. I may put in a fill of cheap 75W90 dino and pamper it for a few miles just as a flush, before I put in the high priced spread. I'm in a cold climate, so I'll wait until warmer weather. Getting gear lube up to heat is never going to happen when it's 35 degrees out.
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