Sparkling Clean Spark Plugs

The job of the spark plugs is to ignite the fuel-air mixture inside the cylinders. The resulting explosion forces the piston back up the cylinder, which provides the power to turn the crankshaft. In top shape, the plugs provide just the right amount of electricity to efficiently burn all of the fuel. If they are out of shape, some of the fuel could be going unburnt, or the spark could be setting the explosion off out of timing. Out of timing explosions can work against the crankshaft, robbing power from your car. Both of these things can cost you gas. If your plugs are fouled by oil or just worn out from a long service life, you will be getting lower gas mileage than you should. Simply keeping your plugs like new can give you 4 or 5 miles per gallon more, helping you save on gas. Have your plugs checked or changed every 30,000 miles.