22 Replace the air filter in your car


Studies at FuelEconomy.com suggest replacing the air filter in your car on a regular basis. Replacing a clogged air filter can improve the mileage that you get with your car by up to 10 percent.

When you calculate that 10 percent into gasoline savings, youll be saving up to 15 cents per gallon. You can ask your mechanic to replace the air filter in your car or you can do it yourself.