DENSO Iridium TT: most progressive spark plugs

post-img

Hi there! I’m Liam Brooks, automotive expert and author of autokwix.com. I’ve tested a dozen of spark plugs on difference vehicles: GMC Sierra, Hyundai Elantra, Ford Focus and many more.

The new Iridium TT spark plugs from the Japanese company DENSO boast the highest concentration of iridium in comparison with any other plug on the market. This results in excellent flammability, optimum engine performance and significant fuel economy. Another distinguishing feature of the Iridium TT spark plugs is the Super Ignition Plug technology, which is based on a combination of an ultra-thin counter-iridium center electrode and a platinum side electrode.

The central iridium electrode of the DENSO Iridium TT spark plug has the smallest diameter in the world – only 0.4 millimeters, and the counter electrode 0.7 millimeters in diameter increases spark energy and reduces heat loss. Spark plugs with SIP technology from other manufacturers are now used in supercars …