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14/04/2022 9:15 am
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I have a 2017 f150 that's due for the rear differential fluid to be changed. My owners manual says to use Motorcraft 75w85 gear oil. It's $33 a quart from the dealer and I can't find it anywhere online hardly. 75w90 is cheaper and more company's make it. Would it be alright to use the 75w90 oil or would it damage my differential?
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14/04/2022 9:20 am
it'll be fine
