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 ...

A diesel engine is a powerful and complex piece of engineering. Unlike a petrol engine that requires a spark, a diesel engine relies on pressure to compress the air within the cylinder. This ...

We may receive a commission on purchases made from links. Over the last century or so, the auto industry has changed in a myriad of incredible ways. It's mind-boggling to think of just how far we've ...

Diesel engines ignite the air/fuel mixture with heat generated by friction and compression, while gasoline engines use the heat caused by a spark from a spark plug. That's why diesel engines are ...

You own a diesel-powered vehicle and are thinking of giving it a tuneup. But does your diesel even have spark plugs to change? The short answer is no, diesel engines do not have spark plugs. Instead, ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...