High-Ignitability Spark Plugs
Ruthenium HX™ brings the most advanced spark plug technology to the automotive aftermarket, delivering better efficiency and power for today’s engines.
The NGK Difference
The Latest Innovation in Precious Metal Spark Plugs.
Modern engines demand more power while using less fuel, shortening the life of traditional iridium and platinum spark plugs. NGK’s patented ruthenium technology stands up better to wear to bring maximum durability and performance to your engine.