As a quart or complete change. Your Vegas is close to my ACE, if its a quart I can very slowly pour from the bottle to the fill tube. For a complete change 7 quarts I have done this. I have a funnel with an extension tube attached to it. I place the funnel between the windshield and the wiper blade, it will hold. Then I put the extension tube into the oil filler tube, works great.
Retired and never looked back
This is what i use and works very good. I did have to remove the white insert that screwed into the black part for it to fit on the Mobil 1 larger opening container. Put the tube into the filler and twist the flo tool collar to start or stop the flo.