[Protek]

Ok, so I pull the Sparkplug cable up out from the top of my engine (was gonna check my plugs since I havent done it since I got the car) and it makes the sound of a plunger in a toilet. When I pull the cable up out of teh engine the botton ha got oil all over it. WHAT THE HELL? Do you think that a leek in my cylinder head gasket would allow oil to leek into there? I drove my car earlier today but Im too afraid to drive it now since I know that the contact on the top of the plug has oil all over it. What should I do? Just take the valve cover off and put a new gasket on? What els could it be?