Spark plugs
Fuel Additives
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Worn-out Spark Plug
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Ash Deposits
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Pre-ignition
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Corona Discharge Stain
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Overheating
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Oil Fouling
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Cold/Carbon Fouling
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Flash Over
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Detonation
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Spark Plug Tightening
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Normal Spark Plug Wear/Operation
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Fuel additives
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