If you've decided that you can get at your spark plugs without damaging your vehicle, assemble the items you need before you begin: Never change just a few plugs; it's all or nothing for even engine ...

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 ...

Spark plugs are an essential part of your engine’s operation. When your engine fires, it’s the spark that causes the ignition cycle to begin. Over time, spark plugs wear out and should be replaced. If ...

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 ...

Misfiring, rough idling, poor acceleration, and decreased fuel efficiency — the four ominous horsemen of bad spark plugs. Nobody wants to ever get to that point before desperately changing such a ...

'Forget the musclecar era, this is the golden age of horsepower. Never in the history of high performance has it been easier and less expensive to make killer power. Face it, 500 hp is the new 400 hp, ...

We earn commissions from purchases you make using links in our articles. Learn more. You’re likely aware that in order to keep your vehicle running in great shape, you’ll need to replace the spark ...

'Forget the musclecar era, this is the golden age of horsepower. Never in the history of high performance has it been easier and less expensive to make killer power. Face it, 500 hp is the new 400 hp, ...