I Changed my plugs about a month ago, now it has started to miss. i have unplugged the connectors from the coils one by one and found which cylinder it is. When I removed the coil it was dripping with oil and inside the hole was saturated. I have yet to remove the plug. If it were rings it should nt be on the outside, right? I hope its something simple.

 

A valve cover gasket is the leak.

 

Thanks, I also just noticed some oil pooled under the alternator. Valve cover gasket, should be a simple fix