Best transmission fluid?

[jmantle]

Originally Posted by Lenny5160

I'm surprised to not see a mention of Allison TranSynd in this thread. It seems to be the "gold standard" in the bracket/Super-class world.

That's what I recommend for my customers that burn the paint off the torque converter, it does stand up to heat very well as most synthetics will. I've tried Transynd, type F, Dex 3, Dex 6, tractor fluid and see very little difference in performance. I'm now running Dexron ULV, it's a low viscosity fluid for the newer 8 and 10 speed and it does seem to be a little quicker. Less drag?