Kanoe
New member
I replaced my valve cover and spark plug tube gaskets with non OEM about two years ago (~18k miles) and about 4 months (~3k miles) ago they started to leak again. One spark plug gasket on the passenger side closest to the fire wall and the valve cover on the driver side. After market gaskets...no bueno. That or I need to fire...my(shade tree mechanic)...my(self).
Others here will disagree, but I agree with you. I have used aftermarket on 2 different cars and both of them were weeping within a year or so. OEMs have not leaked yet in over 6 years.