Shell PANOLIN S4 HLP Synth EAL is formulated with zinc-free additive technology and high-performance fully synthetic saturated esters to help provide an outstanding blend of lubrication performance and environmental acceptability. Readily biodegradable with a low ecotoxicity, Shell PANOLIN S4 HLP Synth EAL hydraulic fluids are particularly suited for use in environmentally sensitive areas where eco-label compliance is required, including US waters. For use in stationary and mobile hydraulic systems including marine and deck equipment, construction, and forestry.