BMW i3

What is Iridium power?

A new generation of high performance spark plug that uses the worlds smallest Iridium electrode, that is mere 0.4 mm in diameter. DENSO (Denso is the world largest Japanese original equipment automotive parts manufacturer) newly develops spark plugs Iridium Power is recommended for drivers that care about performance. If you want the next level of response and power from your high tech European Import Car, than Iridium Spark Plug is for you. By using a 0.4mm diameter Iridium alloy center electrode and a special ground electrode, IRIDIUM POWER release spark performance unseen until now. It steadily gives a high level of response under a variety of driving conditions. The result: Increased acceleration and torque compared to regular plugs. Drivers who care about mileage, drivers who use their cars on a daily basis, fuel consumption is a concern. IRIDIUM POWER is one answer to these concerns.

What is Iridium?

Fifty million years ago, an asteroid composed almost entirely of the precious metal Iridium struck the earth, creating the Gulf of Mexico. The extreme strength of the metal inhibited its large-scale usage in spark plugs. However, through recent technological advances, DENSO has harnessed the power of Iridium. DENSO's patented alloy is composed of iridium, complimented by rhodium an even stronger metal. The rhodium is added to increase oxidation and wear resistance. DENSO was able to make this durable alloy workable by pioneering and patenting a Laser-Welding/process. This process provides a 360-degree weld so reliable that the electrode resists wear, even in the harshest conditions.

Platinum Spark Plugs

Until recently, platinum considered the best material to use on the top of an electrode because of its durability. It is fact, Platinum Spark Plugs are still an excellent choices, however, Iridium is 6 times harder, 8 times stronger, and has a melting point 1200 degrees higher than platinum. Put that into a harsh environment such as an engine piston chamber, and you have a spark plug that can resist wear much better than platinum.

Additionally, the DENSO Iridium Power alloy is so durable; it allowed engineers to produce the world's smallest center electrode (0.4mm) which reduces the voltage requirements, concentrating its sparking power. Also, its smaller size, combined with the tapered U-Groove ground electrode, allows more room for the flame kernel to develop and produce a more efficient combustion. Iridium use represents the most significant technological advance in automotive spark plug manufacturing, since platinum was introduced in the early eighties. As vehicle manufacturers produce increasingly complex and efficient automobiles, there is a greater need for long-life plugs that can tolerate leaner fuel mixtures and improved combustion processes. For example, many newer Lexus' and Toyota models carry an ultra long-life Iridium plug variation, that is capable of up to 120,000 miles.

Why Iridium spark plugs are better? Why should I use them? There are several reasons at above, plus some more at next. For example the smaller the spark plug's electrode the more concentrated the electric potential at the electrode. The stronger the electric field, the lower the required voltage. As a result contribution is good for all types of driving, the engine starts easily and and acceleration improves. Iridium Spark plugs, burns fuel more efficiently, sparks at leaner air/fuel mixtures, and delivers higher horsepower - better gas mileage.

Acceleration Improvement With Iridium Spark Plug


Iridium Spark Plug


There was a difference of 0.7 seconds between IRIDIUM POWER and normal spark plugs in the time taken to reach 150 km/h. There was also difference of 6 m in the distance covered to reach that speed. There are several more differences. If you would like to know more don't hesitate, visit us.


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