Gentlemen, I just purchased a ram 2500hd with a g-56 and a 6.7.Can run the hydrotex hytorque z trans fluid in the trans.It seems to be thicker than than the atf+4 that chrysler recomends.If not,whats the best synthetic atf that I can run in that trans. Thanks, John T lippold AKA 6.7HVN
Amsoil ATF is perfect for the G56. I would recommend staying with the manufacturers weight oil. A thicker oil can cause more trouble than good.