If you require smoother acceleration, better gas mileage, and optimum engine performance, the Bosch Platinum+2 is the spark plug for you. Unlike conventional air gap spark plugs, the Platinum+2 uses surface air gap technology. The spark of a Platinum+2 first travels over the surface of the insulator nose and then arcs across the air gap to a ground electrode for a longer spark, without increasing the voltage requirement. Plus, the yttrium alloy ground electrodes help to reduce gap wear and oxidation, extending the service life of the spark plug.

Bosch Platinum+2 Spark Plug #4312: Promotes smoother acceleration, better gas mileage, and optimum engine performance Longer spark without the increased voltage Yttrium ground electrodes reduce gap wear and oxidation and extend the service life of the spark plug