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Old 07-17-2003, 07:57 PM
Duke2.6 Duke2.6 is offline
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Join Date: Mar 2003
Location: Southern California
Posts: 2,011
Other than changing the rear axle oil at the initial 1000 mile inspection service there is no requirement to change rear axle oil on 86-90 models, however, if you have a limited slip differential, I would recommend a change every 30K miles and be sure to add the proper friction modifier additive to avoid clutch chatter.

For open differentials changing the oil every 60K miles is probably a good idea if you expect to drive the car over 150K miles.

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