Spark plugs help you start gasoline engines and glow plugs do the same in diesel engines. But how do they go about providing ...

Spark plugs are an essential part of your engine’s operation. When your engine fires, it’s the spark that causes the ignition cycle to begin. Over time, spark plugs wear out and should be replaced. If ...

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

If you find that a bumpy road broke off the end of one of your old spark plugs, you should probably call a tow truck. Just don't try to MacGyver your car like I did. The last time I got my car out of ...

If there are engines with two spark plugs in a cylinder, why not three? There are reasons it's rare, but that doesn't mean it ...

Simply put, getting the maximum power from any race engine is a function of the temperature, pressure and timing of combustion gases in the cylinder. Since it would be expensive and impractical for ...

Swapping out spark plugs is, next to changing your oil, one of the most basic, straightforward bits of maintenance you can perform on your car. Spark plugs go bad over time, so it's important to keep ...

I've heard platinum spark plugs can get stuck in engines. Is this true? If so, is it possible to prevent? There has been a long-standing rumor, longer than the promised 100,000-mile lifetime of ...

Read a good spark plug lately? We hope so, for your engine's sake. But spark plug reading—the traditional way to check your fuel mixture and monitor other vital conditions in the combustion chamber ...

I had spark plugs changed in my car. The manual states replace the spark plugs at 60,000 miles. I had it done when the car ...