Gear Oil, ISO Viscosity Grade 1000, SAE Grade 250W, Base Oil Synthetic, Container Size 33 lb., Lubricant NSF Rating Not Rated, Lubricant Additives No Additives, Min. Operating Temp. 15 Degrees F, Max. Operating Temp. 180 Degrees F, Pour Point 0 Degrees F, Container Type Bottle, Color Yellow, Timken OK Load Not Specified, Standards U.S. Steel 224, AGMA 9005, DIN 51517 Part 1, 2, 39, Application Heavy Duty Gear, Four-Ball Wear Not Specified