Autolite XP5684 Iridium XP Spark Plug - Autolite Spark Plugs XP5684

["Iridium XP Spark Plug", "Gap 0.031 (in)"]

Spark plugs ignite the compressed air/fuel mixture in each cylinder, and their condition directly affects combustion efficiency, fuel economy, and emissions. Signs of worn plugs include: difficulty starting, a rough idle, a hesitation or misfire under acceleration, reduced fuel economy, or a check engine light with misfire codes. Replace spark plugs on schedule - new plugs restore clean ignition performance and can noticeably improve fuel economy.

Autolite has been manufacturing spark plugs for over 100 years, offering reliable ignition components for everyday driving. While not a premium performance brand, Autolite plugs deliver dependable starting, smooth operation, and good value for standard applications.