Lubricating oil is just a general term! It includes many oils, such as hydraulic oil, gear oil, and engine oil. . . . . . . . . . The specific gravity of anti-wear hydraulic oil is about 0.85, and the current net weight of 200L packaging is generally 170KG.

The common numbers are 32, 46, 68, and 100! It is based on the viscosity of hydraulic oil at 40 degrees Celsius.