Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change. Spark plugs are the heart of your car’s ignition system. If yours are worn out, ...

Most spark plugs come from the factory with a pre-set plug gap that is recommended for the application. Experimenting with wider or tighter gaps is one way to dial in your engine’s performance, but ...

If you're like us, you've done a lot of thinking lately about the different shapes and lengths of spark plug tips. But odds are that you're nothing like us (good for you), and you've given absolutely ...

If you are the owner of a Ford truck with a three-valve (3V) modular V-8 or V-10 engine built from 2004 thru 2007, you have either faced the misery of broken spark plugs-or you will. The Ford 4.6L, ...