Originally Posted by re-rx7
So you can break down your synthetic oil in 3k miles? Its your car but your wasting money.
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I don't know if break down or contaminate is the correct word, but HPP says for those of us running E85 (especially since its more like E90 around here) should continue to change our oil at 3k miles. Even on E85, I went 5k this last time with no issues.
That said, my oil change was free at Grapevine Ford yesterday. They have a sign up that says they have to do a vehicle walk-around inspection and pop the hood with you present or your oil change is free. The guy got sidetracked looking at my tires that need to be replaced that he didn't pop the hood. Otherwise, it'd have been $60.