Ultra1Plus™ TC-W3 Synthetic 2-Cycle Marine Engine Oil is a premium, synthetic 2-stroke engine oil designed for use in water or air-cooled two-cycle engines. This product is formulated with synthetic base oil and premium performance additive package which contains antioxidants, defoamers, anti-wear compounds, dispersants, and friction modifiers. This synthetic product provides enhanced engine cleanliness, prevents ring sticking, reduces spark plug fouling and eliminates engine smocking.