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News to me , I'm unaware of a Redline ATF for the 8 speed xsmn ?
Mopar doesn't make any of their own fluids. I'm pretty sure it's the same wolf, just in sheep's clothing.
The transfer cases in these are very simple and don't require anything real specific. The ZF, on the other hand, is a very different beast.
Found him here. Forum member SMI is the one with the most miles, (240k+) but there are some others with 150k+ on their 6.4's already too. He just posted 3 days ago... unfortunately, he had to have a head, lifters, cam, etc., replaced. He has lifetime warranty, so all that only cost him $100. Pretty impressive. He says out of that 240k+ mi, less than 500 was without his double car hauler on it. He runs M1 w/fram 4-7k oci. Check out the thread if you want to hear about the 6.4 long haulers.
Sounds like you've gotta lot of mile's to put on youres, better get busy. I'm kinda surprised that they'd offer a lifetime warranty for commercial use. So much for haveing to use Pennzoil to keep you're warranty intact. I'm thinking it's not been dealer serviced also. I think alot are worrying about alot of non issues.
I think he may get away with not being considered "commercial use" because he's under 26k lbs, so no DOT or CDL required. I do wonder what proof of maintenance the dealership asked for, although they'd be able to tell if the oil was kept up on as soon as they removed a valve cover with that many miles. I'd say considering all things and the conditions that truck was operated under, that wear is acceptable. It does make you wonder what a "better" oil and filter would have netted.
