Oh please tell me your going to run the best fluids you can get for your "take it miles out into boonies, I sure don't want a failure here" beloved ride. You do LIKE your jeep don't you? Even at double price for the best, or more, for the amount of times you have to buy it, get the good stuff. Thank god diffs don't use whiskey@$35/L. I sucks so much changing the fluids to can run synthetic and put off doing it as often, and sleep well knowing it's full of the best.
Most of all the passengers who don't have to hike out will thank you, mabey even kick in for product.
I'll help anyone with problems unless they're self inflicted.