It is either aged valve stem seals, blown oil seal in the turbo, or worn piston rings. I noticed oil condensing around exhaust ports 5 & 6 and without much time, I decided to replace just those two seals (yep, not even half the seals, I know
). When I have more time, I will replace all the seals
As for the turbo being responsible--I had it professionally rebuilt so I am ruling it out (unless accidentally racing the engine past 4k rpm upon start up, but letting the car idle after that can damage a rebuilt turbo). And for worn piston rings...
. I could imagine it being the issue...hence the Engine Restore and thicker engine oil.