why one of my spark plug is weat by oil engine.

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Asked by nestoras Apr 22, 2012 at 03:58 PM about the 2005 Chevrolet Optra

Question type: Maintenance & Repair

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Chris answered about a year ago

you need a valve cover gasket if the oil is on the top of the plug, if the oil is on the bottom of the plug it could be piston rings or a head gasket

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jamied88 answered 6 months ago

It is your cam sensor and it is not oil it is gasoline!

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