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I have a 2017 expedition limited with 85,000 miles, I haven’t had a transmission fluid change since I’ve owned it, should I get a change or flush.
That's probably a little extreme for any type of automatic transmission and probably a waste of fluid.I just drain and fill, and do it more often, like every 15-17K. The fluid comes out looking about the same as it did going in, which is what I want. If it comes out looking used up, you have a problem.