Ran Redline D4 ATF for years following the recommendation of LAW Motorsports and never had any issue. I have switched to Motul Gear 300 75/90- D4 ATF along with Patterson I believe and also haven't had any issue that I'm aware of.
My thought is the T56 is overkill for our power levels and I don't think heat is an issue either so run a good fluid that can handle the heat. That's where I'm led to believe Motul does a good job of handling heat-I run Motul in engine, trans, and rear end.
Bryan Leinart
CMC #24
Yeah but he uses reverse way more than anyone else. Much harder on the fluid...
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