[SampleMan]

Well this is just plain wrong.

Exactly!

My Suburban gets great mileage on the downslope of mountains. So to radically increase gas mileage, I simply start all my trips from the top of a mountain. Sort of the opposite of when I was a kid and had to walk up hill to school both ways.

[05 Mustang GT Rocks]

In 1989 I drove a Ford Tempo from Houston to Baton Rouge and got over 45 mpg. Drove behind an 18wheeler all the way. BTW when I went to school not only I had to walk uphill both ways, I also had to walk through 10 ft of snow the whole school year.