Noticed some oil (not much) leeching out around the cover below (circled in picture). 6 months later, oil continues to leak in this spot and has spread to the front valve cover (left side of cover - standing in front of car - around the dipstick). Makes me think there's pressure building in this spot. First thought was PCV valve. Anyone else run into this? I know there's an oil passage cast into that aluminum cover on the front of the engine - maybe something is plugged up there?