Which spark plugs do you use in your car?
This is the same mistake I made. The NGK boxes for these two aforementioned spark plugs state "iridium", but they are actually platinum electrode plugs. WTF NGK????
Won't they both be an alloy? Iridium is added to platinum to make it harder and more resistant to chemicals.
This was an old thread so scott may not be following it, i just brought it back because when doing a search it had the wrong information and I wanted to correct it for others in the future