Bosch 4428 FGR8LQP0 Platinum+4 Spark Plug, Pack of 1

Bosch Platinum+4 spark plug has unique revolutionary firing technology combining the advantages of surface air gap technology, nickel-yttrium four ground electrodes and a heat-fused center electrode with pure platinum providing optimum engine performance, smoother acceleration and top fuel efficiency.
Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance
Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life
Electrode gap is factory set to provide ease of installation – never requires adjustment
Never requires gapping, the electrode gap is factory-set and never requires adjustment
Provides ease of installation – never requires adjustment