This line of hydraulic oils consists of synthetic esters derived from unsaturated vegetable sources that are environmentally friendly. The oils are composed of high viscosity base oils, which contribute to their low pour points. Additionally, they are formulated with an additive package that provides excellent oxidation stability, anti-corrosion, and anti-wear properties. These oils also have minimal impact on aquatic and marine ecosystems. These hydraulic oils are an ideal replacement for traditional mineral oils in both stationary and mobile hydraulic systems, particularly in areas where spills or leaks are more likely to occur. Such systems are typically encountered in offshore settings, as well as marine environments, including subsea installations, harbor cranes, and life-saving equipment. Choosing the appropriate viscosity grade depends largely on the working and ambient temperatures of the equipment, with ISO VG 22 and 32 being best suited for lower temperatures, ISO 46 being a versatile option, and ISO VG 68 being preferable for higher temperatures. These oils meet the ISO/FDIS 15380 HEES standard.