904 Transmission Fluid Recommendation

lol, I didn't think any one would remember the sperm whale oil. ( an aside, some 90 fords would chatter- ford found a synthetic whale oil to fix it-1 pint, done) It boils down the the modifiers.

Old powerglides, fordomatics, slim jim pontiacs- crap friction material. That;s why Ford wanted fluid for less slip- same crap friction material. And helped a mopar, less slip. Think about a motorcycle; wet clutch. smooth operation, and hardly any wear, un-like a dry clutch.

Now all the new stuff is better friction material, not old organic stuff. Any fluid will work. dextron3 is good, dextron4 is good, ford is good- the trans doesn't care anymore. It just wont's some lube to keep bands and clutches from sticking, and needs to run the valve body and converter.