Just saw this article from Edmunds.com. By their tests, you can save as much as 37% by just changing from an aggressive driver to a moderate driver.
Our tests showed that the most significant way to save gas is: you. And we’re talking massive fuel economy gains. Think you need a hybrid? Chances are you’ve got hybrid-style mileage in your gas pedal foot. Don’t mash the gas when you start up. Take the long view of the road and brake easy. This tip alone can save you unbelievable amounts of gas. If you slowed your 0-to-60-mph acceleration time down from your current 10 seconds to a more normal city pace of 15 seconds, you’ll feel the savings immediately.
Holy cow.
Some other interesting stuff in that article as well. Worth a look.