Gear Oil, ISO Viscosity Grade 320, SAE Grade 90W, Base Oil Synthetic, Container Size 25 lb., Lubricant NSF Rating Not Rated, Lubricant Additives No Additives, Min. Operating Temp. 15 Degrees F, Max. Operating Temp. 180 Degrees F, Viscosity Index 127, Flash Point 527 Degrees F, Pour Point -20 Degrees F, Container Type Bottle, Color Yellow, Timken OK Load Not Specified, Standards U.S. Steel 224, AGMA 9005, DIN 51517 Part 1, 2, 4, Application Heavy Duty Gear, Four-Ball Wear Not Specified