Fitting bigger spark plugs might sound like a recipe for improving power output, but it can have catastrophic consequences for your engine.

Platinum spark plugs are already a step up from copper. Double platinum plugs might seem like a straightforward upgrade, but it's not as simple as it seems.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

Add Yahoo as a preferred source to see more of our stories on Google. When an air-fuel charge burns inside an engine's cylinder, some of the heat that is produced gets absorbed by the spark plug. The ...