Mag 1 525 Premium Universal Tractor Hydraulic Transmission Fluid - 5 Gallon, (1 each) Exceptional protection against wear from microscopic contaminants and higher operating temperatures and pressures ensures long equipment life Critically balanced frictional characteristics ensure precise clutch and wet brake operating with unsurpassed chatter suppression Extra resistance to thermal degradation provides superior protection against oxidation and deposit formation Prevents acid formation for exceptional protection against rust and corrosion Highly reliable performance over a wide range of temperatures.