Spark plugs deliver a jolt of electricity to start ignition in gasoline engines. Glow plugs warm diesel engines so that their fuel will auto-ignite.

They sell specialized tools that will help you break car windows in an emergency, but you can also use a spark plug to do the job. Here's why it works.

Diesel engines are known to be reliable and long-lasting, but they can also present unique maintenance issues that you must ...

Not all spark plugs are created equal, and knowing which one your car needs can vastly improve your car's fuel economy.