Possible that the crankcase is seeing positive pressure?

My wife's old X-Trail was doing something with the oil although I am not sure what. Didn't smoke or leak it on the ground and it started doing this after a factory recall on some darn thing that was addressed at the dealership.

Had it in for some work at an independent and when it came back the oil loss issue went away. I am guessing the piping from the crankcase vent was not installed correctly at the dealership and the indy guy put it back together correctly.

That was our last Nissan.

Cankcase ventilation would be another thought on my mind. he said, he replaced the pcv valve, not sure if that motor has any other sorts of crankcase ventilation or not. I can look it up for you if needed.
When the crank case vent valves go south on BMW's, I have seen them ingest copious amounts of oil. A few taken in so much oil they have come in hydro locked from it .

When I get a chance, Ill do some more checking for you . Check that coolant again today !!! That sure looked more like steam in your photo than it did oil ..