I got my XJ back in September and there seemed to be some gunk built up around the bottom of the valve cover. It was cold out all winter so I didnt get to mess with it, but I was looking at it yesterday and it seemed to be a little bit worse. I looked at the air filter and there was a few drops of oil in there. I know thats a common problem on the 4.0 and I know how to fix it, but with all of it around the bottom of the valve cover do you guys think that I would need to swap that out? Or just the gasket?
Any input is appreciated.