[serialk11r]

The good thing about having an inefficient drivetrain is...higher speeds don't reduce fuel economy much XD

With my short geared, big cam V8, I get 25mpg at 60, 22mpg at 70 and 20mpg at 80. Climbing a hill takes barely more fuel than going on flat land because half the fuel goes towards heating the engine oil.

I've been thinking about adding a box cavity to the rear of cars to use less fuel on long trips though, probably doable with just cardboard (sprayed with paint or something to repel water) and cargo straps.