The requirement to gap spark plugs might not be as common as it once was, but it's still an important bit of maintenance on ...

Not all spark plugs are created equal, and knowing which one your car needs can vastly improve your car's fuel economy.

Spark plugs are necessary for gas-powered engines. However, they're not all the same, and they can come in different shapes ...

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Your engine’s spark plugs are one of its smallest and most important, parts. We look at some of the best. The engine in your car, truck, or crossover operates on the simple principle of capturing the ...