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Rear end oil, air filter change question

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Old 05-06-2008, 09:33 PM
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Rear end oil, air filter change question

How many miles are you running before rear end oil changes? I was every 15K now i have 58K
Air every 30?
Old 05-07-2008, 01:42 AM
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I change the differential gear oil every 20k with Mobil 1 75w90. No problems at 90K miles so far.

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Old 05-07-2008, 04:39 PM
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if you use cheap gear oil then I would say every 15K but if you use some good stuff you can go between 30 and 50K. that is unless you tow heavy or run in or through a lot of water.
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