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

Spark plugs are necessary for gas-powered engines. However, they're not all the same, and they can come in different shapes and sizes. Here's why that is.

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

A man changing the spark plug on a lawn mower - Fertnig/Getty Images If you own a gas-powered lawn mower, whether it is a compact push model or a giant zero-turn ride-on, there are a few key ...

Spark plugs are vital components for gas-powered engines. However, they have a limited lifespan. Here are some common signs ...

The rate at which a spark plug wears out will vary depending on the make and model of the vehicle, the type of engine, driving conditions, and spark plug type. Engines with copper spark plugs ...

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

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 ...