There are a lot of different types of spark plugs out there, but they all do one job, which is igniting the air-fuel mixture inside the cylinders. A shiny new spark plug does that consistently at the ...

Spark plugs are one of those maintenance items that, along with things like brake fluid and thermostats, are easily overlooked but extremely important to your car's safety, longevity, and performance.

Spark plugs play a key role in keeping your engine running, since it's that little jolt of electricity that ignites the fuel/air mixture in a motor's cylinders. And that little spark has to be ...

Spark plugs are an integral part of your engine, but they need to be replaced every so often. We'll tell you how to find out ...