This spark plug tester features an innovative dual-socket design, allowing you to test two spark plugs simultaneously. By taking this approach, you can effectively compare the spark intensity of two ...

Spark plug testers aren't entirely necessary, but they can provide convenience when you're specifically trying to figure out ...

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 ...

Spark plugs may be small, but they have a huge impact on your car’s performance, fuel economy, and reliability. Choosing the right type, using the correct tools, and following proper replacement steps ...

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 ...