Add Yahoo as a preferred source to see more of our stories on Google. Spark plug gapping may sound like one of those old-timey chores, like setting breaker points in a distributor or lubricating the ...

Most drivers know that you should change your spark plugs routinely to keep your car's engine running smoothly. However, when it comes to gapping spark plugs, many people may find themselves confused.

There are many paths on the quest for horsepower. You have the obvious modifications, of course, like installing a turbocharger or a supercharger, but there are ...

In racing, spark plugs are practically a disposable commodity. Use them for a while and throw them away. If the engine starts acting funny, replace the plugs just in case. It's cheap insurance and ...

One of the best ways to gain automotive knowledge is simply by asking the two-word question: “What is (a part, theory, thing)?” and locking in the definition after it is given. We’ll take a flier and ...