Quote:
Originally posted by Accord Man
Well the platinums are only a couple of bucks more and they last longer.. so why not.
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Civic_Addict is right. Platinums suck! Suck power that is...
Gap erosion [and consequent performance degradation] is what kills spark plugs. Larger gaps and higher voltages accelerate this wear, hence the material evolution to platinum [and other precious metals] which are actually worse conductors, but more durable to slow this wear. The one exception to this is Iridium. Denso Iridium Power plugs are 16 bones each. NGK Iridium and Iridium IX plugs cost about the same.
If you're interested in buying the ultimate spark plugs for your sh!t box, visit these sites:
Having said that, the best price/performance value in spark plugs are copper-core spark plugs, and NGK V-Power plugs are one of the best, if not the best.
That's what I use. Just be sure to change them about every 20K for best performance.