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 ...

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

When an air-fuel charge burns inside an engine's cylinder, some of the heat that is produced gets absorbed by the spark plug. The heat is transferred to the engine's coolant, taking a path through the ...

Spark plug lifespan depends on the electrode material. Copper plugs last 20,000 to 30,000 miles, platinum plugs last around 60,000 miles, and iridium plugs last 80,000 to 100,000 miles. Worn plugs ...