Unfortunately, I have never tried anything other than regular ATF. Though Trannyman has me piqued in looking to see what else would perhaps work better. I have access to thicker ATF fluilds, a TransSynd type fluid and others.

Ive never even considered anything John Deere or Case though. I dont think I would have made that connection. John Deere, Pontiac......John Deere, Pontiac. Nope I just would have never went down that road without someone suggesting it.