Originally Posted by
RexReid
I didn't want to change the Ford engine performance program. I did change tires and the programmer I got was off ebay for $100 used, from Hypertech.
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I thought of something else and I think we all tend to forget. Some goofy hyper-milers drove an f150 for a long way (cross-country) and got 33 mpg with the 3.7l going 45mph. I think all three motors would get that kind of mileage with hypermiling. The point is that the type of driving and driving style make a huge difference. Lead foot wives are always the cool ones too.