Bosch Platinum Spark Plugs have a 2x longer service life compared to standard copper plugs, according to the company’s website. The product is made from high-purity stainless steel and has been tested for leakage by an independent testing laboratory. It was first introduced in 2008 with the production of the Grand Cherokee. The vehicle had a fuel tank installed on its engine which allowed it to run more efficiently. Notably, this comes amid reports that the diesel engine may not perform well.

: Mexico. The spark plugs feature a center wire platinum firing tip for reduced gap erosion, faster acceleration, and improved fuel economy. The spark plugs also feature a full platinum side electrode to ensure virtually no gap erosion. The spark plugs are guaranteed for four years. They have been tested in the US and Germany. The product is manufactured using high-purity nickel alloy. The spark plugs are available in two sizes: Standard and Premium.

Bosch Double Iridium Spark Plugs have a 4X longer service life than standard copper spark plugs. The double iridium firing pin and ground electrode inlay provide superior performance and durability, while the stainless steel core ensures maximum heat dispersion from the ignition source. It also provides an anti-corrosion coating to prevent corrosion. Bosch’s spark plugs are available in three sizes: Standard, Premium and Premium. They can be used with any engine. Notably, the original equipment was manufactured in Germany.