The most platinum with four yttrium-enhanced ground electrodes and the most powerful spark.
If you require the best in platinum performance over the longest service life, Platinum+4 is the spark plug for you. Platinum+4's unique revolutionary firing technology combines the advantages of surface air gap technology, four yttrium-enhanced ground electrodes, and a heat-fused center electrode with the most platinum, creating the most powerful spark you can buy.
| Bosch Platinum+4 Features |
Bosch Platinum+4 Benefits |
| Revolutionary surface air gap firing technology featuring multiple spark paths |
Delivers the longest, most powerful spark for ultimate engine performance |
| More platinum vs. Bosch Platinum Plus |
For smoother acceleration, top fuel economy and maximum engine power |
| 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 |
Provides ease of installation - never requires adjustment |
