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XJ, Towing and Synth oil for diffs


PostMaster General
NAXJA Member
Ok, I finally found the synth oil (well I found it a month ago) for the diff. IT's Coastal GL5 90 140 (or 85 140.. dont remember LOL).
In any case, the manual says to use the heavier synth oil for towing and I'm wondering about the Coastal brand. Any thoughts/comments on that? Btw, the trailer is close to 3000lbs and will towed from LA to Moab :D, the axle is 8.25 with trac loc (and yeah I got the little bottle from the dealer).