Lasts up to 100k miles.
Factory spark plug on most new cars.
Iridium tip is the hardest spark plug metal type & most resistant to erosion
Maintains the correct gap longer than any other metal type
Lower voltage requirement for spark to jump gap, improving efficiency
Fine tip design helps prevent fouling and improve performance
Lasts between 60-80k miles.
Improved plug life over Platinum.
Platinum on both the center and ground electrodes
Double Platinum recommended for waste spark ignition systems
Fine wire design helps prevent fouling and improves performance
Lasts up to 60k miles.
Platinum on center electrode only
Platinum is a harder metal that resists oxidation, arc erosion, and maintains gap longer than copper
Lasts Less than 30k miles.
Copper plugs have a copper core and nickel alloy electrode tip
Nickel is the softest spark plug metal type, which is why it wears out quicker
Requires more voltage to fire than a precious metal plug because the electrode tips cannot be made as fine as Platinum or Iridium