On my 87 Laredo, it seems like nomatter, what I try, the Jeep always leaks oil out of the filler cap on the valve cover (4.0 Renix) I have replaced the cap a couple different times from different (Renix 4.0) Cherokees and even put a brand new one on there. Same thing, it leaks. It has no other oil leaks and its frustrating to have this one leak. I have replaced the valve cover before with another Renix era 4.0 valve cover and same thing. Does anybody elses do this? Im thinking about changing to a valve cover from a 91+. Maybe that will fix my problem? :helpme: