Tested: Top six ways to improve gas mileage


Edmunds: We Test the Tips

By changing your driving habits you can improve fuel economy up to 37 percent right away (depending on how you drive). Combine several tips and perform routine maintenance and you will save real dollars, not just pennies.

Edmunds tests gas savings tips to find out what works and what doesn't. This article lists the top six that will save you gas and money. The good news: you don't have to turn off your AC!