Differential fluid...which one?

[Mr Clean]

Planning on changing the diff fluid in my '01 and I'd like to know what fluid y'all recommend. Synthetic Redline, Mobil, Royal Purple or any other brand?

[bluedragon436]

75w-90 for the diff fluid or go to 75w-140 if you tow a lot.. As far as brand, I think you're good with any brand you prefer.. I know some folks like to run the same brand in their diffs, trans and engine oil... I was going to go with Mobil 1 in mine, but ended up going with Royal Purple as I've always had great luck with Royal Purple fluid in my transmissions I've worked on in the past even on FWD cars...

[XJ Wheeler]

Running Mobil 1 in mine, but only cause it's the only mineral oil I could find locally and not bad price either. 75w90 in both axles so I can carry one bottle for both, just in case.

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