The more synthetic fluids out there the longer the cleanups are. You wouldn’t believe in this day an age how many guys still use hose clamps on their engine and transmission lines.
...or cheap, rubber gas line because it's a lot less money. Everything on a race car should be a threaded connection except for maybe radiator hoses.
The Rossler recommendations seem fine. I've tried high end synth street ATF and didn't like how the clutches looked. Heat streaks from slipping on apply. Amsoil makes a racing synth Type F which I understand is developed from oil used in large powershift units in large equipment. "B&M & TCI fluids" and also ATI fluid is rumored to be repackaged powershift/hydraulic equipment oil, so there's that.
Again, we used Valvoline/NAPA Type FA, changed it every 50 runs or so and had no fluid issues. Pro tree, 6000 on the mat, no 2 step, every pass.
