3DogKnight
Well-known member
- Thread starter
- #1
I just recently received my 2021 F150 3.5 and am curious about when other owners of a new 3.5 change oil the first time and then the mileage interval between following changes. I've owned a lot of cars and trucks in the past and have always changed oil (full synthetic) at 3500 to 4000 miles. None of these vehicles had turbos and I rarely drive more than 6000 miles per year.
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