Fixing a car that is noticeably out of tune or has failed an emissions test can improve its gas mileage by an average of 4% (12 cents per gallon*).
Fixing a serious maintenance problem, such as a faulty oxygen sensor, can improve your mileage by as much as 40 percent ($1.20 per gallon*)!
Replacing a clogged air filter can improve your car's gas mileage by as much as 10 percent (30 cents per gallon*) Your car's air filter keeps impurities from damaging the inside of your engine. Not only will replacing a dirty air filter save gas, it will protect your engine.
Air filter savings based on: Organization for Economic Co-operation and Development (OECD), 2001, Automobile Fuel Consumption in Actual Traffic Conditions..
You can improve your gas mileage by around 3.3 percent by keeping your tires inflated to the proper pressure. Under-inflated tires can lower gas mileage by 0.3 percent for every 1 psi drop in pressure of all four tires. Properly inflated tires are safer and last longer.
Fuel up and Save...Competitively priced