NGK Platinum Spark Plugs are high-performance spark plugs specifically developed for improved spark performance and greater service intervals over factory nickel plugs. They feature a fine platinum tip for consistent spark performance, cold-rolled threads to prevent cross-threading and damage to cylinder heads, and trivalent plating that eliminates the need for anti-seize compounds. The high-grade alumina silicate ceramic quickly dissipates heat. Each spark plug manufactured by NGK is designed to meet the most rigorous standards, ensuring the ability to deliver reliability and consistent performance under all conditions. Each plug plays a major role in helping improve performance, fuel economy, and the overall optimum efficiency of your engine, making a significant contribution to the reduction of emissions.