I know of a way to save gas... Drive in a higher gear (if you drive manual). My truck is supposed to only get 25mpg, but I can squeeze out to 30mpg if I drive under 50mph, on Gear 5. Course, my truck gets pretty sluggish, and it only really works on long stretches of flat road (hard to find here in Wyoming).

"The only thing necessary for the triumph of evil is for good men to do nothing."
- Edmund Burke (1729-1797)