So I was giving the old girl the once over and noticed that I needed to top off the oil. When I did I heard that oil splattering on the garage floor sound. There was just a little bit that looked like it was running out of the seam around the pan. Upon further inspection I realized that when I poured the oil in it was actually leaking out from around the valve cover between the bolt on the left and the line from the air rail. My question is how bad is this? Is it probably the gasket for the valve cover? Thanks.