I’ve got a 2010 Mercury Mariner FWD 2.5L 4-cylinder 138k miles. The transmission fluid has never been changed. Should I have it drained and replaced? Or leave it as it is? Thanks!

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Mercury Mariner tranny fluid

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21/08/2021 9:52 am

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I’ve got a 2010 Mercury Mariner FWD 2.5L 4-cylinder 138k miles. The transmission fluid has never been changed. Should I have it drained and replaced? Or leave it as it is? Thanks!

RickD

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21/08/2021 6:44 pm

If it works fine now leave it alone

scottykilmer

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