how to stop oil leaking into spark plug hole for 1996 acura 2.5tl on 1996 Acura TL

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oil is leaking and accumulating into my spark plug chamber closes to fire wall and car is running harder than usual the other four spark plugs are dry what could be the problem?
(2) Answers
replace the valve cover gasket ..
the valve cover gasket kit comes with the Rings to keep the oil from going into the plugs