Oil & Fuel Montana 4940

[Vegas1]

Hi guys
I have a 4940, the question I have, other than motor oil, can I use TDH oil for the other fluids ?
My manual says 80W90 for the front axle but TDH for the rear and hydraulics.

Thanks

 

[190revolution]

I would probably stick to 80w90 gear oil in front diff, and tdh everywhere else. That said, you could be the litmus test, I don't want to try it