Quote:
Originally Posted by 340Cuda
I don't know enough to tell you anything about the transmission and engine oils but I strongly feel that going to synthetic lube in my Dana 60 has eliminated the first run of the day being slower, even if the car had been warmed up on jack stands.
This makes me think it would be more consistent for the rest of the day as well.
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This. I had the same result with first run in the morning and not getting regular oil warmed up enough. Now first run is consistent with other runs.