John Deere Hygard hydro/transmission fluid?

John deere Hygard VS ATF F
This thread's from yellowbullet racing forum where alot of guys use power glides and use hygard in them...they probably tear their trans apart pretty often anyway....i'm not sold either rusty was just very curious after the youtube vid.

I have no doubt "it works" because the Torqueflite will literally run and run WELL using 30 weight motor oil. Lots of people do that, too.