Circulating Oil, ISO Viscosity Grade 320, Base Oil Mineral, Container Size 5 gal., Lubricant NSF Rating Not Rated, Lubricant Additives No Additives, Min. Operating Temp. 20 Degrees F, Viscosity Index 96, Flash Point 288 Degrees C, Pour Point -12 Degrees C, Container Type Pail, Color Brown, Standards ASTM, Application Circulation Systems, Specific Gravity 0.89