Autolite Double Platinum Spark Plugs feature platinum-to-platinum firing which virtually eliminates gerosion, reduces misfires, and provides improved durability. These superior-performing spark plugs provide the preferred technology for DIS engines. They also feature a high nickel alloy side electrode, full platinum tips, a necked-down center electrode, and a full copper core center electrode. Guaranteed for 5 years. Full platinum tips ensure virtually no gerosionWorks to optimize engine performance for a longer life and improved fuel economyNecked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker accelerationHigh nickel alloy side electrode maintains precise gapFull copper core electrode provides better performance in all conditionsModel # APP63.
