Your examples span 60 years of vehicle production. Is it safe to assume the lubrication options available to those theoretically infallible lubrication engineers in 1936 were identical to the choices available to the manufacturers in 1995? That's a bit of a stretch for anyone with a little bit of common sense. After having worked on driveline components for slightly over 50 years, I believe my personal opinions carry some weight, regardless of others' protests to the contrary. I'll keep those opinions to myself, however, as I'm sure you wouldn't be impressed and I hate wasting my breath (or keystrokes) on people who don't appreciate my advice.
Jerry
