* See http://www.fueleconomy.gov/feg/FEG2007.pdf

K&N Air Filter Video

An engine that is getting the optimal amount of air flow is an efficient engine, and one that may show improvements in fuel mileage over an engine that is gasping for breath through a clogged air filter. With fuel prices at record highs, isn't it nice to know that something as simple and inexpensive as changing or cleaning your car's dirty air filter may improve mileage? Other mileage savings tips include making sure that your car's tires are properly inflated and removing unused accessory racks and heavy items from the car when not in use.