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

For hot rodders, spark plugs are often nothing more than inspection tools that reveal whether an engine is running too rich, too lean, or just right. Street guys look for a nice tannish-brown tint on ...

Bruce Springsteen said it best when he said, "You can't start a fire without a spark." While spark plugs may not be number one on your conversation hit parade, there is a whole raft of new, "designer" ...

The engine in your car, truck, or crossover operates on the simple principle of capturing the energy from countless tiny ...

The rate at which a spark plug wears out will vary depending on the make and model of the vehicle, the type of engine, driving conditions, and spark plug type. Engines with copper spark plugs ...