Developed for engines that are “seasoned” or have been in service for a few years. However, the robust formulation makes this oil excep¬tionally applicable for new high displacement/horsepower carbureted or direct injection outboard motors. Uniquely formulated with extra ashless dispersants to help keep performance robbing carbon deposits from forming in the combustion chamber, piston tops, under crowns, and piston combustion rings. Most importantly it helps keep exhaust ports clean. Formulated to a higher lubricity limit than NMMA AF-27 lubricity test to provide EXCELLENT protection against piston scuffing and reduce wear.