• An iridium spark plug with excellent durability and firing performance has been adopted.
• The extremely thin, center electrode has a diameter of 0.7 mm {0.028 in} and is made of iridium alloy.
• Durability has been improved by the use of a platinum-tipped grounding electrode.
• Based on the thinner electrode (center electrode), electric discharge has been reduced and ignition has been improved, resulting in stable ignition performance under any driving conditions.