^^
Yup, mostly copper electrodes. The manufacturers manual usually state 3 brands of choice, in my case its either Bosch, Beru, or Champion.
the Denso Iridium Tough series is the long life type.. up to 100,000 km before replacement
DENSO SPARK PLUGS - Basic Knowledge
you can check the Iridium Power and Iridium Tough part numbers for Philippine vehicles here: http://www.globaldenso.com/en/produc...ippines_4w.zip
Wow 100,000 before you change! That's like 7-8 years. I never realised that some plugs can last that long. And maybe the European car manufacturers specify copper since it still conducts better than other metals.
sa mga nakagamit na, pa-verify nga if this is what genuine Denso Iridium Power IW16 (Made in Japan) looks like. silver color kasi ung body sa box. parang bronze color naman yung body ng actual. i will buy this from Amazon.
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