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 ...

Perfectly tuning the heat range of an engine's spark plugs is something of a dark art to all but the most well versed tuners and the engineering egg heads at automotive OEMs. Getting the spark plug ...

When you think of four-cylinder engines, chances are, you're thinking of a system where each cylinder uses a single spark plug to ignite the fuel. This would seem to make sense; why go through the ...