Find out what triggers detonation and pre-ignition, why ignition timing really matters, and how these problems can seriously ...

You might not think about spark plug heat ratings often, so here's a rundown on what that means and how it affects your ...

In olden times, part of the ritual of changing your engine's spark plugs was making sure that the gap was set correctly for optimum performance. That is, the distance between the spark plug's center ...

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 ...