I use 30ft/lbs on all steel bolts going into aluminum for a torque setting on my Cub Cadet rear cases.
Here is the fluid George is talking about and what I use also.
https://www.tractorsupply.com/tsc/pr...3?cm_vc=-10005
I little cheaper in the bucket size.
https://www.tractorsupply.com/tsc/pr...1?cm_vc=-10005
Hytran is the correct oil to run so your factory warranty won't be voided.
I don't have an IH dealer anywhere near me so I would need to have it shipped so I use whats local to me.