Spark plug wear hides in plain sight. It builds slowly, then suddenly the engine starts telling a different story. A code reader might flag a misfire or throw a generic warning, but spark plug wear ...

Ever had that nagging feeling that something’s just not quite right with your car? Maybe it’s been sputtering a little more than usual, or perhaps you’ve noticed your gas mileage taking a nosedive.

Spark plugs are a key component of your gasoline engine, and they have a key role in the ignition process. How long can you ...