Dodge Cummins Diesel Forum - View Single Post - Diff Oil Change
Thread: Diff Oil Change
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post #2 of (permalink) Old 10-21-2019, 06:50 PM
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When I change my rear differential gear oil, I pull the cover, and wipe it down clean. Having the cover off gives you the opportunity to inspect inside. Many school's of thought on how often. I change mine close to the 40,000 mile mark. My manual says every 15,000, but that is bit much IMO. Some change longer or shorter, depending on the owner and what's thought best. How often does your manual say?

2012 SLT 3500, CCLB, HO, SRW 4x2, 4.10s, 68RFE, Mineral Grey, Pacbrake air springs, Fumoto oil valve, Cat/Cummins Dual Filter kit, Edge CTS Monitor.
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