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CONTENTS
Find Your Plugs
Reference
Part Number Chart
IRIDIUM POWER
Features
Structure
Linenup
Specifications
IRIDIUM TOUGH
Features
Structure
Linenup
Specifications
IRIDIUM PLUS
Features
Specifications
IRIDIUM POWER
Features
Structure
Linenup
Specifications
Basic_Knowledge
Plugs Configrations
 Plugs Specifications
Q & A
IRIDIUM POWER Q&A
IRIDIUM TOUGH Q&A
TECH Q&A
 Sales Companies
Cross Reference
IRIDIUM TOUGH is recommended for the following user.
Because of its long lifetime, recommended to drivers for long driving.
For long distance and heavy-use drivers.
By greatly minimizing electrode wear, DENSO improved mileage and extended the plug’s useful life. Longevity provides you with peace of mind and safety when using IRIDIUM TOUGH

As I drive every day, so I want less fuel consumption.
For drivers that care about mileage.
If you use your car on a daily basis, you may be concerned about fuel consumption. IRIDIUM TOUGH is one solution.
Leading the world with advanced technology!
High Durability

Comparison of Durability
Comparison of Durability
* From taxi monitoring test results. Displacement is mainly 2000 cc.
* Depending on the driving conditions there will be differences in endurance.
* The service lifetime of Iridium Tough will depend on operating conditions and the vehicles it is installed on. (Service lifetime may become shorter depending on the vehicle's ignition system.)
Improved Ignitability

Realizing high ignition performance with a 0.4mm diameter electrode.
Comparison of Flame Spread
Improved Mileage

The difference in mileage
Vehicle: 2000cc, 6 cyl, 4 cycle
Driving Conditions: 60km/h on set ground
Improved Acceleration

Stable ignitability, improved acceleration
The difference in acceleration
The difference in acceleration
The Effect of Iridium Electrode
・ Promotion of Flame Kernel Growth
・ Comparison of Combustion Pressure
Promotion of Flame Kernel Growth Comparison of Combustion Pressure


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