Lube King, 5 Gallon Pail, AW ISO 46, 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, 0.8683 Viscosity @ 40 Degrees Celsius, CST, 46.03 Viscosity @ 100 Degrees Celsius, CST 6.95 Pour Point Degrees Celsius, -33 Degrees Celsius, -28 Degrees Fahrenheit, Viscosity Index 105.