Update... so I have not been using the Journey very much lately, but at 43500 km, and 1/2 liter per 1000 km, I have taken it in for an early oil change as to start the logbook.
ImperialCown - re: 1 quart per 2000 miles... is that documented somewhere? The service writer could not find the reference to "normal oil consumption" when I was there. He did mention that is was different before and after 50 000 (miles/km?)
I did notice that the tech used bottled oil this time... not the bulk stuff, so my original 5w20 suspicion is still there.
I was considering trading it and making it somebody else's problem, but the family budget doesn't allow that at the moment.