This is not true unless you…
This is not true unless you are hauling a trailer. My 2018 tacoma trd sport 4x4 gets 22 mpg from Seattle to Spokane. It has a 19 gallon tank. A V6 with 278 HP . I get 400 miles on a tank on flat ground to Portland and beyond easy. Your truck has a problem if you get 250 miles per tank or you stop to fill up at a quarter tank left. Simple math. Even at 15 mpg you can get over 250 miles per tank. You're losing mpg somewhere. But I do agree with the point trying to be made. It is a truck after all. Why not a 22 or even 25 gallon tank? THAT would be awesome.