Anybody running 15w40 delo or rotella in a 6G75 3.8L and/or Gen 3.5 Montero (03-06)?
I know plenty use 5w40, but it is different - it's a synthetic and more expensive.
I'm at 200k mi on a recently acquired 05 Monty. Lots of oil consumption, been topping off with 5w30 but using 15w40 delo on...