Seafoam and spark plugs???
06-24-2007, 10:32 AM
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yea i had an ignition scope on my car when my plugs had 97K miles on them..Everything was perfect...Firing voltages, spark lines...everything was in perfect shape. So i would have to disagree with the plugs not lasting 100K miles...As long as your not fouling the plugs out from an overly rich mixture there really isnt any reason why they cant go 100K miles. Right after i scoped it, i did change them and replaced them with the AC delco Iridium's...There was no difference at all. I plan on keeping them in there until i pull the motor.
