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I'm sorry guys but I have owned truck covers on my last three trucks and they each got a bit better milage with them on. The faster I went cruising, the bigger the reduction in fuel usage. Now as to the test in the video. Am I wrong or did their flow meter say 5.0+ gallons per hour when he announced he was doing 55 mph? If so, then that means a truck that is getting 11mpg or less at 55mph. I don't know of any truck that is that terrible on gas. Here is another point. It seems to me that the faster you would go, the better a cover would work and the worse an open bed would be. 55mph is a poor testing speed imo. How about 65mph or 70 like most highways are posted? I think there would be a significant change in the results then. What do you think?
