The Premium Super S additive formulation has superior detergent/dispersant anti-wear antioxidant anti-rust and anti-foam agents along with special friction modifiers. It is a true multifunctional fluid with detergents to keep transmissions clean and maintain hydraulic control circuits while providing outstanding protection against seal and pump deterioration and wet brake noise suppression under wide temperature ranges. The special friction modifiers permit the wet brakes to hold properly and allow smooth engagement of power take off (PTO) clutches.Super S Premium Universal Tractor Hydraulic Fluid has been field tested and is suitable for use where any of the following fluids are recommended: