OEM Quicksilver Four Stroke 10W-40 Marine Engine Oil 8M0148476 8M0148477

Four stroke mineral base oil is recommended for use in all four stroke marine outboard, stern drive and inboard engines. It is SAE 10W40 weight oil. Specifically formulated and developed to meet the needs of all 4-stroke marine engines. Advanced corrosion inhibitors. Designed to withstand heat and stress of high RPM operation. FC-W Catalyst Compatible. Meets API SM requirements. Meets or exceeds all marine engine manufacturer's warranty requirements and recommendations for use of an FC-W marine engine oil. It maintains its viscosity, protects against varnish buildup and sludge formation and exceeds the rust protection requirements for NMMA certification. See your owner's manual or service manual for specific applications and instructions.