[guyina4x4]

Originally Posted by pepperpikker

OK, How about the second product that I posted above? It says: "Meets Case / IH (HYTRAN B-6) requirements".

https://www.farmandfleet.com/product...lic-fluid.html

Or can you post a link to a source for the stuff you use?

I've used the f&f stuff in several cub rears without issue.
I've also used 5w30 diesel engine oil in them.
I had a case 621 we were dumping gallons of hi tran in every week, finally got a case mobile guy to come over and fix it. When he was done he was filling it up with 15/40. He said that's all they ever use at the dealership.