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Old 06-11-2014, 12:29 PM   #20 (permalink)
ksa8907
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Volt, gas only - '12 Chevrolet Volt Premium
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All plugs have copper cores, the electrode is what changes.

I have personally seen single platinum plugs with roughly 60k miles, the gap went to about .070" just from the ground being blasted away. The elecrode tip was fine.
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