Most four-cylinder engines use a single spark plug per cylinder, but a lot of them throughout the years used eight spark ...

Spark plugs are pretty crucial to internal combustion engines, but can swapping old plugs for new ones really improve your ...

Rotary engines differ from conventional ones in many respects — and one of them is the fact that they use two different spark ...

In the past decade or so, automakers have turned to downsized turbocharged engines—often with direct injection and higher compression ratios—to boost efficiency. These fancier power plants tend to ...

Read a good spark plug lately? We hope so, for your engine's sake. But spark plug reading—the traditional way to check your fuel mixture and monitor other vital conditions in the combustion chamber ...

If you consider your spark plugs little more than disposable engine parts to be replaced for every event or two, you're missing out on a valuable engine-tuning tool. Not only can the correct plug ...

In the middle of the 20th century, the atom was all the rage. Radiation was the shiny new solution to everything while being similarly poorly understood by the general public and a great deal of those ...