Bio-degradable hydraulic of the ISO VG 46 variety is often used in place of conventional hydraulic oils that contain zinc and other additives that may be harmful to the ecosystem and environment. These oils may be used consistently in applications where there is the chance of contamination with water and/or soil. These oils readily biodegrade over a specific length of time (consult oil specifications in the product data sheet to determine which oil may be best for your application).

Bio-degradable ISO VG 46 hydraulic oil has an average, or midpoint, kinematic viscosity of 46 mm²/s (or cSt).