Features Recommended by Mercury Marine for use in direct injection two - cycle engines such as Mercury OptiMax Outperforms automotive oils in marine applications because of its specialized additive package designed for marine engines Continued use of this oil will provide outstanding wear and corrosion protection Helps extend engine life, minimize performance - robbing carbon deposits and maintains peak engine performance and reliability Maintains peak engine performance and reliability and reduce smoke Specifications Type: 2 cycle Grade: Synthetic Blend Size: 4L