Spark plugs come in many different types, but they also have many different heat ranges. Here's what that means, as well as ...

Read a good spark plug lately? We hope so, for your engine's sake. But spark plug reading—the traditional way to check your fuel mixture and monitor other vital conditions in the combustion chamber ...

Spark plugs are essential for gas-powered engines. However, they're not all created equal. Here's what can happen if you use the wrong spark plugs in your car.

Q. What is the purpose for the heat range of a spark plug? This question came up with me and my neighbor. J.K., Pittsburgh A. No need for a heated debate. First, “heat range” has nothing to do with ...

Today, spark plugs are pretty easy to forget. In new Corvettes, theyseem to last forever. That wasn't the case years ago and, frankly, sparkplugs are often critical when it comes to performance and ...

Add Yahoo as a preferred source to see more of our stories on Google. All spark plugs may look the same to the untrained eye. Unfortunately, nothing could be further from the truth. For starters, ...