- Fine-Wire Double Platinum features Platinum pad on both electrodes. Extended service intervals (on all except Nickel and Standard Copper Core plugs).
- Proprietary platinum pad on side wire electrode (on Platinum-Iridium and Fine-Wire Double Platinum plugs). Platinum-Iridium plugs feature Iridium-enhanced center electrode. Platinum-Iridium plugs can be used in any engine regardless of ignition system.
- Scavenger area allows for more carbon build-up before misfires occur.
- Full ground strap helps for better heat transfer within the combustion chamber, Thicker insulator for better misfire prevention.
- Spark plugs are matched to the engine for optimum engine performance. Spark plug designs include continuous improvements, Resist oxidation and arc erosion.
- Multi-rib insulator protects against misfire, Nickel-plated shell for corrosion resistance (on all except Standard Copper Core), High-Strength Steel High Thread, Platinum-Iridium, and Fine-Wire Double-Platinum feature 0.8 mm fine-wire design.
- Spark plugs are tested to Ford specifications for performance and emissions.
