When you remove the spark plug seal, it will look like this pic. I'm lucky oil didn't get down into the spark plug holes. Mine are lightly sealed there with form a gasket. It should slow down oil seep. RTV only on moon and VANOS/cover seal seat. A lightly brushed coat of form a gasket on cover and head mating surface.
Clear as mud?
A good working CCV will prevent cap buildup. 167k on the OEM cover. No more white milk since installing a cold weather CCV package.
