Lube King, 2 gallon, AW ISO 68, hydraulic fluid, exceptional protection against wear from contaminants & higher operating temperatures & pressures ensures longer equipment life, maintains viscosity, even under higher operating temperatures, & has sufficient reserve of key additives, resulting in longer fluid life & reduced operating costs & reduced foaming ensures smooth, efficient operation & proper lubrication of all parts in the system, specific gravity @ 60 degrees Fahrenheit, 15.6 degrees Celsius, 0.8723 viscosity @ 40 degrees Celsius cst, 69.25 viscosity @ 100 degrees Celsius cst, 8.95 pour point degrees Celsius, -30 degrees Celsius, -22 degrees Fahrenheit, viscosity index 103.