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Differences in gear oil specs

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Old 08-24-2011, 02:58 PM
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Default Differences in gear oil specs
Factory specs say to use 75W-90 on front and rear diffs

Will anything bad happen due to using 80W-90
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Old 08-25-2011, 07:56 AM
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No, nothing bad will happen, unless you have limited slip in the rear and you need the friction additive. Your diffs will be fine with 80w90 otherwise.

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