Quote:
Originally Posted by RandyB
UPDATE: I drained out the RP and filled with Mobil1 Synthetic ATF (this is DexIII, not DexVI, so it is the right stuff).
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Glad to hear it's working well for you. I'm sort of surprised since GM does not recommend straight DexIII anymore in the Tremec. I believe the GM specified trans fluid is a mixture of DexIII and friction modifiers for the syncro's. Perhaps the Mobil 1 has some properties that the straight GM DexIII does not have.