Four Times the
Amount of Pure Platinum with Four Electrodes and the
Most Powerful Spark.
Platinum+4's unique revolutionary firing technology
combines the advantages of surface air gap technology,
four ground electrodes, and a heat-fused center electrode
with four times the amount of pure platinum. Only
Bosch offers this revolutionary firing technology
for the ultimate in engine performance.
conventional air gap spark plugs, Platinum+4 uses
surface air gap technology, which generates the most
powerful spark you can buy. The spark 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, four ground electrodes provide
multiple radial spark paths, which allow the spark
to find the most efficient path. Platinum+4 also uses
four times the amount of pure platinum in its center
electrode versus Bosch Platinum, and double that of
Bosch Platinum2, for the longest performance life.
Try Bosch Platinum+4 Spark Plugs,
and ignite your car's performance with the most powerful
spark you can buy.