I acquired a D4H LGP seriers 111 with no manuals of course. Is 30 wt motor oil correct for trans?
After several searches, the defintive answer was found. 30 wt is choice.
I think it requires an oil with the t-04 package which translates into an additive for the clutch/ brake system. Most of the generic oils I have seen from NAPA, Oreilly's and such does not have this. Any oil distributer should have this and I would insist on using it. My local guy likes to push the multi purpose fluid.
I think DickJr is right.....T-04 is what Cat recommends for my tractor. Not motor oil.
Get some TO-4 from the Cat people, it not worth the risk to do anything else. sam.
TO-4 is found in tractor tdh fluid at any tractor supply