Looking for a recommendation for Auto Trans Fluid for a ZF 3HP 22 auto box. This particular box is in an old BMW ('77 3.0L) but I am pretty sure they were in plenty of other cars in the late 70's early 80's including Pug 505's.
The Castrol website suggests Transmax M. I don't think it is a Dexron 3, which by previous readings seems to be a must to avoid in older boxes.
Also what have been people's experiences with Nulon G60 which is formulated for use in Auto boxes?
Thanks in advance for the collective wisdom from fellow AF'ers.