Spark plugs help you start gasoline engines and glow plugs do the same in diesel engines. But how do they go about providing that boost? And how do they differ?

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 ...

We may receive a commission on purchases made from links. The glow plugs in a diesel are like the spark plugs in a gasoline engine, but they function differently. The only similarities between glow ...