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• Features iridium with high melting point
• Long life and high reliability
• Stable combustion during idling

• Significant potential fuel efficiency improvement: > 4% to 13% (depending on engine class)
• DiamondFire electrode technology that creates a superior spark and resulting flame front extending further into the cylinder, producing more localized pressure
• Significant potential power increase: > 6% to 12% (depending on engine class)

• You can depend on NGK for quality and reliability
• Better center electrode anti-oxidation and anti-erosion
• More durability and a higher melting point than platinum

• Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system
• Fused iridium and platinum center electrode, sintered into an extended insulator nose results in reaching self-cleaning temperature only seconds after starting and provides exceptional wear resistance
• Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life

• Constructed from durable material
• Taper cut reduces the voltage necessary and provides better throttle response
• Includes laser welded platinum tip on center electrode and platinum tip on the ground electrode