This oil is a new formulation that goes beyond the latest TC-W3 performance standard issued by the NMMA to improve outboard engine life. It is designed to meet all outboard engine manufacturers' performance requirements for pre-mix, direct oil injection, and newer generation direct injection 2-cycle engines. Its state of the art "ash less" formulation minimizes the combustion chamber deposits which cause spark plug fouling and pre-ignition. Furthermore, through the use of unique additive chemistry it has proven to be more environmentally friendly than other 2-cycle motor oils. 946ml.