Specifically formulated and developed to meet the needs of all marine diesel engines. Features: 15W-40 oil formulated to combat sludge and varnish formation, Contains a higher additive level than standard fleet oils, providing better protection, Provides excellent shear stability to assure stay-in-grade performance, even in highly stressed applications, Protects internal engine components from corrosion and wear, Provides excellent water tolerance. Volume: 4 l.