Truck#1 Posted September 12, 2007 Share Posted September 12, 2007 How often should I change my trans and rear axle oils??? I'll do about 15,000 miles a year. The book says about 500 hours (dump/local work....thats what i'll be doing with an occasional trip out of state. I have Eaton axles and trans and require synthetic oil. That stuff is like liquid gold $$$$$$. The 50w synthetic bucket says its 100,000 mile oil. I don't want to change oil too often if its not needed. Thanks in advance Quote Link to comment Share on other sites More sharing options...
Noid93 Posted September 13, 2007 Share Posted September 13, 2007 I usually just do it once a year, unless its really dirty(metal finlings, changes colors, etc). I would compare it to rotating tires or changing coolant(who does that?). You know if it needs to be done or not. I would by no means go over two years without changing oils in those. I dont care how much the oils cost, just figure how much a rear end or tranny costs vs a couple hundred dollars in oil. Get an oil analisyst done will tell wether the oil has deteriorated.... Quote There Is No Replacement, For Displacement!!!!! Link to comment Share on other sites More sharing options...
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