dodgeguy66
Junior Member
I need some advice for changing my transmission oil on my 8 speed transmission. I purchased a replacement pan with replaceable filter and Valvoline Maxlife Multivehicle transmission oil from Rockauto but haven't installed anything yet. I've been hearing some conflicted reports of people saying this oil is no good for the 8 speed. Is that true? I've done a lot of research on this oil and it seems to be showing that it is compatible, according to part number references and the description on the back of the bottle. The 8 speed transmission on this truck is the 8HP70 correct? Also is it a ZF transmission? If so, then I beleive this oil is perfectly compatible. Please correct me if I am wrong on any of this. Thanks.