NGK Spark Plugs S.A. think i am an. The NGK-BKR6EP-11 M36H platinum plug is guaranteed to last up to one hundred thousand Km, but after 150Km it fouled. Before even complaining to them I was at fault according to a tel conversation I overheard. Mitch Wade wrote a report but don't think the plug was tested in a laboratory. I have sent this report and my explanation to NGK Japan at [email protected], hope i get better service from them
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