I was thinking it was the oil pan gasket. Went to Indy shop and he
quoted me $1100 labor to change the $40 gasket! Says he has to
drop whole sub frame.

Where is the oil separator and those "banjo" nuts you tightened? That
seems like a great first place to start! I did the valve cover gasket, they
were shot.

I have 199,400 miles......... those hoses in back of motor have never been
touched.