Tape or thread sealant?It’s hard to tell exactly where it’s coming from but if it’s the threads, put some teflon tape around the threads and send it.
Just replaced a hose, so might just be slop from that but I’ll definitely check it out.Looks like you might have a coolant leak too. And if you look closely you can see a dribble of oil north of that port, like it's leaking down from somewhere higher and collecting where you think it's leaking. Maybe take another look around with a bright light.