The requirement to gap spark plugs might not be as common as it once was, but it's still an important bit of maintenance on ...

In racing, spark plugs are practically a disposable commodity. Use them for a while and throw them away. If the engine starts acting funny, replace the plugs just in case. It's cheap insurance and ...

Not all spark plugs are created equal, and knowing which one your car needs can vastly improve your car's fuel economy.

Like rotating tires or changing oil, replacing spark plugs is a job that can be easily, and inexpensively, done in the confines of your own home. Although they don’t need maintenance as often as the ...