In that pic above, it looks wet above the coil pack as well. Oil is likely dripping out of the bolt hole in the lower plenum that sits right above that point.

 

R&D Factory has these o-rings grommets were for those who have leaking o-rings grommets yet their warranty is already over. we do drill out the old o-ring grommets with hole saw size 1 7/8 inch. its is slightly bigger than the existing hole and slightly smaller than the o-ring....please pm us if you have any further questions....thank you
60 for 6 o-rings
90 to add OEM valve cover gaskets (both side)
100 to add OEM pcv valve and seal
above prices are shipped to lower 48 states.....

 

^What is the o-ring compound?