SAE 10W30 4-stroke oil is specifically formulated for use with all 4-stroke outboards. A premium grade base stock and special additives make this a superior grade of 4-stroke outboard oil. Meets API service requirements for SJ CF-2 CH-4. Contains significantly more performance additives than automotive oils to stand up to the rigors of the 4-stroke outboard environment and special viscosity improvers to assure stay-in-grade performance in high RPM 4-stroke outboard applications. All 4-stroke outboard applications. 33.8 fl. oz. 1 L.