todras you are so one sided you made me post in this thread again.

It was never in question that MTL was a lower viscosity. (it's rated around 80-85w) Matter of fact it has been mentioned 100's of times in a context like as follows.
"MLT is between the original Mercon ATF and the New Ford honey in viscosity. This will give better start up and colder weather shifting while still giving you the benefits of running a true gear oil instead of the lesser protecting ATF."

Also it was mentioned about as many times that MT-90 is more of a direct viscosity comparison to the specs of the Honey.


So that in itself is proving nothing against the fluid.


Also Zinc is used as an antiwear additive. It is found in many antiwear chemical compounds.

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.