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Spark plug manufacturers do not recommend using a 'Coin Style' tool to adjust the gap on an Iridium, Platinum or Ruthenium tipped spark plug. These precious metals are very delicate and can be easily damaged.
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CHAMPION Warranty Information:Iridium plugs 7 years - Double Platinum Power 5 years - Platinum Power 3 years - Copper Plus 2 years |
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