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 ...

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.

In the past, car parts used to be rather finicky. You had to occasionally adjust the carburetor to ensure your car was getting the right amount of fuel. You had to check the coolant every season to ...