DFE (double fine electrode) maximizes ignitability whil reducing emissions for low heat engines. NGK-patented design recommended for non-turbo applications.
PSPE® (projected square platinum electrode) provides the best ignitability and service life for high heat engines. NGK-patented design recommended for turbo and supercharged engines
NGK Ruthenium HX™ provides more complete fuel burn than other precious metal spark plugs. The results are quicker throttle response, smoother idle and better cold starts.
The NGK Difference
NGK’s patented Ruthenium technology is available in our most advanced OEM designs to provide the most optimal durability at high temperatures in various driving conditions.
All NGK spark plugs must pass extensive testing procedures and quality checks
Combustion Pressure Test