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I'm glad this was brought up.
I recently purchased a 2011 F150. I've always changed the oil in every vehicle I've ever owned every 3-4k miles but I'm at 3000 now and the truck's computer is telling me it's "oil life" is still at 75%. Should I listen to it or change the oil anyway? According to the manual I should base oil changes on the system info (computers) recommendation. I know for a fact it has regular oil in it, not synthetic.
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