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#20365
frankr
Participant

    I’ve never had any experience with it in an outboard, but I can tell you that the manual for my Dodge truck says that for trailer towing the rear axle gear oil should be drained and replaced with synthetic. So I guess that means Chrysler feels it is better for wear prevention. Works for me, we’ve towed the trailer to Alaska, plus across the 48 four times, plus more.