88 5.3 V12
So a couple months ago I was getting a lot of oil in B bank air cleaner that i could tell was coming from pcv inlet, cleaned up OEM PCV, and that seemed to have fixed it.
But now several weeks later, I see a few drops of oil dripping from BOTH throttle bodies. The inlet from PCV is dry.
I have also noticed some of my spark plugs have oil on the threads, but no indication that the oil is in the combustion chamber, no fouling at all.
Could I have a leak somewhere that allows oil to get into intake manifold?
It’s not major, no blue smoke, and oil level is good.
All vacuum hoses going to intake manifold look dry.