Ford Truck Enthusiasts Forums - View Single Post - 2009+ 5.4 spark plugs. Same 2 piece? When to change?
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Old 07-15-2014, 10:36 PM
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Cruiser64 Cruiser64 is offline
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I thought I read somewhere that when they changed the plug design they also changed the color of the cop. Can anyone help clear my head on this? Something about either a black cop or possibly a brown cop but can't remember which was good.
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