The cost difference per mile may be true when comparing high MPG vehicles but when comparing 12-13 mpg versus 16-17mpg. The last time I calculated, it was hovering right around 2 cents a mile. 8,000 mile round trip tour = steak and salmon instead of chicken & burgersMy best friend is a petroleum engineer (I was the physics guy). We went through the math calculating energy density of pure gasoline vs ethanol. It turns out the amount you lose in fuel efficiency from using ethanol blends--because it has less energy per gallon, so you have to use more of it for the engine to do the same work--is almost directly proportional to the price difference. Funny how capitalism works :P .