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

Spark plugs come in many different types, but they also have many different heat ranges. Here's what that means, as well as why you should care about it.

Spark plugs help you start gasoline engines and glow plugs do the same in diesel engines. But how do they go about providing ...

How long spark plugs last varies with different cars and different types of spark plugs. Older cars often had to have their spark plugs replaced every 5,000 to 10,000 miles, while some newer cars — ...

The many spark plug types are typically named after precious metals used in their center electrode, ground electrode, or both. Copper plugs are the most affordable and the most basic while iridium ...

If you ever want to start a heated group discussion in a group of auto gear-head DIYers, simply ask what’s the best spark plug to use? As many opinions and reasons will start flying, as if you asked ...

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 ...

If you're like us, you've done a lot of thinking lately about the different shapes and lengths of spark plug tips. But odds are that you're nothing like us (good for you), and you've given absolutely ...

A gas engine needs fuel, air, and spark to get its internals chugging along. Take any of these out of the equation and the engine will have a fit. While the automotive industry shifts toward fully ...

Not every driver knows how often they need to change spark plugs in their car. The frequency is determined by many factors, such as the material from which the center electrode is made, the operating ...