When i got my boat new from theo they put in the same amount of 2 stroke oil as you use in a pre mix in a 60lt tank , i never ran any extra after that just rely on the oil injection after that i would say yours would be the same i only use quicksilver premium 2 stroke oil in mine and have no smoke issues or problems when trolling lures for hours on end . Nice to see you out there sunday that was a test for the new boat ,looked great on the water seemed to handle it well from what i saw yesterday was glassed of all the way to morton . Enjoy your new beast ......matt