yes bro evinrude outboard is good but cause white smoke. I've been using it for every half can (500ml per can) with a full tank fuel. Not so sure abt the fuel/oil ratio, I just reckon. Everytime when ppl see the white smoke coming out from my exhaust they sure ask: eh, ur engine got problems ar???..hmm... would like to see the results when the day comes for my rebuild, hhaha..i.e. how clean & "shine" inside the engine... :D