There are three things a gasoline engine needs: air, fuel and spark. The spark plug ignites the air/fuel mixture, producing the combustion that powers the engine. Despite the fact that spark plugs ...

Today, spark plugs are pretty easy to forget. In new Corvettes, theyseem to last forever. That wasn't the case years ago and, frankly, sparkplugs are often critical when it comes to performance and ...

Designed to be combined with a high-tension magneto ignition system, the spark plug solved what Carl Benz had described as ‘the most fundamental obstacle to early motoring’. Over a century later, the ...