Spark plugs come in many different types, but they also have many different heat ranges. Here's what that means, as well as ...

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

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

Add Yahoo as a preferred source to see more of our stories on Google. If you're like us, you've done a lot of thinking lately about the different shapes and lengths of spark plug tips. But odds are ...