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    Dexron III + Friction Modifier = ATF +4 ?

    My 2001 Dodge Ram 2500 4x4 with Cummins I-6 diesel has the 47RE overdrive transmission specifying Chrysler's ATF +4 only. An independent diesel specialist shop drained, flushed and refilled with Dexron III / Mercon plus 20 oz ATP AT-203 synthetic friction modifier, claimed to provide equivalent...
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    Ford E-350 Rear Axle = Lifetime Fill?

    I just got a Class B motorhome on a 2001 Ford E-350 dual rear wheel cutaway chassis with 10,700 lb GVWR and just over 30K miles. Naturally I checked all fluids but the rear axle is supposed to be a lifetime fill according to the manual with 75W140 synthetic hypoid gear oil. This Motorcraft...
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