Forum Discussion
p220sigman
Aug 28, 2014Explorer
Years ago with another truck I owned (GMC 2500 gasser), I tested driving with the tailgate up and down to see if there was a difference. I was doing a 500 mile round trip down here in FL, so no mountains to deal with. I used cruise control as much as possible and drove the speed limits. I drove down with the tailgate down and back with the tailgate up. I actually got worse mileage with the tailgate down by about .5 MPG hand calculated. I later added a soft tonneau cover and had to make the same trip. Got about .5 MPG better than with the tailgate up.
Certainly not scientific, but at least indicates very little difference and possibly will be worse. It would probably take a while to recover the cost of adding a different tailgate.
Certainly not scientific, but at least indicates very little difference and possibly will be worse. It would probably take a while to recover the cost of adding a different tailgate.
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