Also, because taxis use liquefied petroleum gas (LPG) as fuel, a large electrode increases the required voltage, and because this places a larger load on high tension cords and coils, it affects the life of the vehicle. With its 0.4mm center electrode that keeps the required voltage low, it can be said that the IRIDIUM PLUS, is a car-friendly spark plug.
Using a platinum-tipped ground electrode to realize high-performance operation and long life.
A Platinium tip was used, which has a long history of use in platinum plugs. By signigicantly controlling electrode wear, we've achieved a level of durability equal to that of platiunum plugs.
High Strength Insulator
Using a high-strength insulator specially designed for taxis.
By using a high-strength ceramic insulator for LPG engines, a 20% increase in strength was achieved over conventional insulators.
Less fuel consumption with a 0.4mm diameter center electrode.
Even during idling, when it is easy for ignition to degrade, IRIDIUM PLUS reduces mis-sparking and stabilizes idling speed. This results in a quieter engine and improved fuel consumption.
Through steady ignitability, acceleration performance is greatly improved.
IRIDIUM PLUS, through its 0.4mm diameter iridium center electrode, has realized high ignition performance and low spark voltage at levels heretofore unseen. Because of this, there is less non-firing under high spark voltage conditions and fewer misfires under conditions where ignition is difficult, permitting operation with a high level of response under a variety of conditions. As a result, acceleration has been improved.
Realizing astounding life and durability with platinum ground electrodes.
By welding a platinum tip to the ground electrode, wear has been controlled to a significant extent in the IRIDIUM PLUS. In addition to acceleration performance, the life and durability of this plug has been increased to that of a platinum plug.