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 ...

A lawn mower's performance often depends on small components, like spark plugs, that are easy to overlook until problems start showing up in the yard.

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 ...

The spark plugs in your car's engine are serviceable parts that require periodic replacement. Those plugs are rather durable and would last the life of multiple oil changes, but they do eventually ...