Shell Tellus S4 ME 46 has been specially developed to reduce the energy consumption of hydraulic applications. It is based on synthetic base oils and a unique formula for optimal flow, friction and power transmission. Energy saving properties of up to 4% of Shell Tellus S4 ME 46 have been demonstrated in laboratory and documented field trials.Shell Tellus S4 ME 32 Shell Tellus S4 ME hydraulic fluids are designed to help users improve the energy efficiency of their hydraulic systems without compromising the protection of the system or maintenance procedures of their equipment and operations