U-GROOVE TECHNOLOGY

Improved Ignition, fuel saving, engine and emissions performance

• Better fuel economy: U-groove Spark Plugs can ignite leaner mixtures; therefore reducing misfires.
• Smoother running: the spark and the flame are not crushed between the electrodes giving the flame front more space; thus increasing engine performance.
• Efficient combustion: The "U" shape allows the spark to fill the gap; creating an efficient combustion.
• Lower emissions: U-groove combines the advantage of a bigger gap, while maintaining a standard space.
• Durability: The "U-groove" shape is located on the ground electrode (as opposed to the centre electrode); the area the least affected by wear and tear to ensure a maximum lifespan.

RESISTOR SPARK PLUG

Intelligent design to minimise radio interferences

• High quality Resistor: our full range of resistor plugs feature a metal sleeve artound the insulator and a protected connection point, to avoid potential interference with electronic equipment.
• Reduces radio interferences: resistors located in the spark segment of the plug greatly reduce radiom interferences.
• All-round electronicx systems performance: Resistors also avoid interferences with other electronic equipment  including mobile telephones, ignition and management systems, ABS and navigation systems.

Heat range

The best heat range performance on the market

• More heat ranges: DENSO spark plugs cover more heat ranges than any other manufacturers without compromise on quality and performance; ensuring the right choice for almost every application, with optimal engine performance.
• Less stock: Fewer part numbers to cover all heat ranges means less stock holding.
• Ideal operating temperature: The unique design of DENSO Spark Plug helps channelling the ideal amount of heat out of the combustion chamber, ensuring DENSO plugs run neither too hot (causing pre-ignition), nor too cold (causing carbon fouling)