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

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 ...

Gas-powered internal combustion engines need spark plugs to (literally) ignite and complete the combustion stroke, enabling the motor to produce power. They may seem unusual to the untrained eye, but ...

The engine of a car heavily depends on spark plugs, given their role in igniting the mixture of air and fuel in the combustion chamber. A top-notch spark plug ensures that your engine runs smoothly ...

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 — ...

Spark plugs are vital components for gas-powered engines. However, they have a limited lifespan. Here are some common signs ...

You have to be careful about swapping spark plugs around, but some wrenching enthusiasts might wonder if spark plug wires are ...

Changing your own spark plugs is a rite of passage among gearheads. It shows you’re fully aware that your car needs basic maintenance to stay in tip-top shape, and that you’re ready to tackle it ...

Like rotating tires or changing oil, replacing spark plugs is a job that can be easily, and inexpensively, done in the confines of your own home. Although they don’t need maintenance as often as the ...

A man changing the spark plug on a lawn mower - Fertnig/Getty Images If you own a gas-powered lawn mower, whether it is a compact push model or a giant zero-turn ride-on, there are a few key ...

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 ...