The plug’s revolutionary design is centered around four ground electrodes (as opposed to the single electrode found in traditional spark plugs) and a pure platinum center electrode that combines to create a more powerful, more efficient spark. The result is smoother acceleration and improved fuel efficiency.
“We’re honored that the Platinum+4 was chosen for this award,” said Robert Burnham of Bosch. “ We believe that the innovative design of the Platinum+4 is a technology breakthrough. The editors of Popular Mechanics validate that belief by presenting the Platinum+4 with the Design & Engineering Award.”
Four ground electrodes provide multiple spark paths which allow the spark to travel the most efficient path and deliver a longer and more powerful spark than conventional single electrode plugs. This offers superior burn characteristics for ultimate engine performance.
Only Bosch uses a pure platinum center electrode that's heat-fused into a ceramic insulator to eliminate air gaps which exist in platinum alloy-tipped plugs. Platinum+4 reaches its self-cleaning temperature faster for smoother acceleration and better fuel efficiency. Plus, Platinum+4 adds 75% more pure platinum over that of Bosch Platinum to its center electrode, providing a longer performance life.