I drive over two mountains, one right after the other, on my way to work, and my mileage drops considerably. If I'm averaging 68MPG, by the time I get to the top of the second mountain, I'll be around58MPG. This is with around 20 to 25 miles on the trip. Today I was at 84MPG and 19 miles, and got trapped behind a tractor trailer, which killed me. At the top of the hill I was at 64MPG! I've tried flooring it, getting a "running" start, going around 50MPH, and it doesn't help. Flooring it actually seems to work the best. Anyone have any suggestions on the best way to go up a hill and not lose to much mileage, or is it hopeless?