Interesting stuff.

I found this
Quote
The lubricant specified for this trans is API GL-4 or GL-5. Because of the paper-lined synchro rings, a friction modifier should be added to the lube fill. One bottle of friction modifier, Mitsubishi part #ME581050, should ensure smooth shifts.



web page

Good read.

Kevin

87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...