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Old 03-24-2010, 03:04 AM   #82
Mach! Schnell!
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Join Date: Feb 2010
Location: Whidbey Island, WA
Posts: 41
Re: Lock-out, missed shifts - Mystery solved?

I see the subject of tranny fluids has been beat to death and I don't expect fluids to be miracle cures, but I figure it's worth posting Tremec's latest recommendations for the newcomers (like me).

1. Tremec does not recommend GM sychromesh in the 3650.
2. Tremec says they have evaluated RP and quote "do not use RP Synchromax in the 3650" . "It has more additives than ATF and those additives will eat the blocker rings". It may shift better for awhile, but it will hurt in the long run.
3. What do they recommend? Mobil 1 synth ATF.

I'm draining the Synchromax that I just paid $60 for and putting in Mobil 1 + Lucas this weekend.
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