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Yeah but he uses reverse way more than anyone else. Much harder on the fluid...

C'mon mister oil expert. Pennzoil is the label they stick on Shell lubricants (same guys that make the rotella) sold in the US these days. The exact same stuff gets a shell sticker overseas.
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I've been running plain non synthetic pennzoil synchromesh. It's a touch notchy when cold but shifts like butter after the first warmup lap.

The tremec guy here in TX said for what we do the shear...