Evinrude E-TEC uses up to 75% less than typical 2-stroke carbureted engines and up to 50% less oil than competitive direct injection engines (when run with Evinrude/Johnson XD 100T oil with optional dealer programming of the Engine Management Module, versus normal TCW3 oil). And you'll use 30% less oil compared to a 4-stroke with a typical maintenance schedule under normal operating conditions.That's just the start. The Evinrude E-TEC engines use an exclusive low friction design. There are no belts, no chains, no powerhead gears, no cams, and no mechanized oil pumps.