Mercury Premium TCW 3 2 Stroke / Cycle Outboard Oil - 2.5 Gallon - 92-858023K01. Specifically formulated with a marine additive package to meet the needs of low-to mid-horsepower outboard engines operating under general marine conditions. Exceeds TC-W3 standards. Reduces rust and corrosion of internal components. Meets all outboard and personal watercraft manufacturers' recommendations for use of TC-W2 and TC-W3 oils in pre-mix or oil-injected 2-cycle applications. Provides warranty protection for Mercury, Mariner, Force and Sport Jet 2-cycle engines.