We may receive a commission on purchases made from links. When it comes to engine care 101, a spark plug replacement — also referred to as a tune-up — is an essential task. Spark plugs, as the name ...

Spark plugs are one of those maintenance items that, along with things like brake fluid and thermostats, are easily overlooked but extremely important to your car's safety, longevity, and performance.

Spark plugs are essential to the running of a vehicle, helping ignite the mixture of air and fuel to provide combustion to the engine. There are three specific parts of a spark plug, a central ...