Quote:
Originally Posted by Bibio
i've had my share of brand new plugs being fubar. good thing about the twin sparks is that even if one plug fails it still has another to create a spark. bad news is that its difficult to tell if a plug has failed.
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Ditto.I had a brand new Iridium fail on me.I don't believe in changing plugs at some predetermined number of miles or time.I change them when I know they are not 100%.I have a set of NGKs standards in an old Honda that have done well over 25,000 miles and still look good and give good MPG and power.
I suspect the Densos in my SV may have done 14k miles
