Topper while pulling TT help MPG?
I'm curious has anyone had experience with a topper while pulling a TT? How does it effect MPG vs. no topper? I'm thinking a truck with a high topper would help make the truck/TT combo more aerodynam...
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I also carry a canoe, and maybe it helps the mileage by .2MPG or so. But towing speed, and wind speed and direction are bigger factors.
