Amsoil Trans Fluid ??

I've used Amsoil in my 904 since I first built it. Even with a trans brake and no cooler the fluid lasts for years. Regular mineral oil based ATF lasts about 15 passes. The bonus is you get a couple hundred extra stall RPM's with the Amsoil too. If I had the money it would be in my truck right now too. But it will have to wait a bit.