Super S TC-W3 Premium Outboard Oil is a high performance, 2-cycle engine oil meeting or exceeding the warranty requirements of all leading manufacturers. 2-cycle products include chain saws, lawn mowers, motorcycles, string trimmers, as well as outboard engines made by Johnson/Evinrude, Mercury Marine, Yamaha, Suzuki, Nissan, Force/U.S. Marine, Mariner, Sears, and all other manufacturers requiring TC-W3 oil. It protects against piston scuffing and ring sticking as well as keeping spark plugs and exhaust parts clean. It is also suitable for use in oil injected systems requiring a TC-W3 oil.