If there is a component on a Pontiac engine that gets little or no thought, it's the spark plug. We refuse to spend much money or time on them, but unless your Pontiac is powered by a GM diesel, the ...

Spark plugs sit at the center of every gasoline engine’s heartbeat, turning fuel and air into the controlled explosions that move your car. When they work properly, you feel smooth power, quick starts ...

The new, patented Split-Fire spark plug's V-shaped ground electrode broadens the flame pattern without excessive erosion tendencies. The spark kernel is larger than those of a conventional plug, ...