Champion Iridium Plug Number REC12WMPB5 Spark Plug 9055 | O'Reilly Aut
Champion® - Iridium Spark Plug
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Should I replace the original iridium spark plugs in a 16-year old car at 60,000 miles, even though the owner's manual says to do it at 100,000 miles? - Quora
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