Non-toxic, Zinc-Free Antiwear Hydraulic Oil

Phillips 66® Ecoterra Hydraulic Oil is a high-quality, zinc-free antiwear hydraulic oil specifically developed for use in industrial and mobile equipment operating in environmentally sensitive areas. It is specially formulated for reduced environmental impact in case of leaks or spills. It is non-toxic to fish and aquatic species as determined by OECD Test Method 203 1-12, and is classified as inherently biodegradable by the OECD Test Method 301B. It passes the visual “no sheen” requirements of the U.S. EPA Static Sheen Test.

Features & Benefits

  • Non-toxic to aquatic organisms
  • Inherently biodegradable
  • Does not contain zinc or other heavy metals
  • Excellent oxidation resistance and thermal stability
  • Protects against rust and corrosion
  • Excellent water-separating properties
  • Good foam resistance
  • Lower-cost alternative to synthetic biodegradable hydraulic fluids


  • Hydraulic equipment used in environmentally sensitive areas, such as national parks, wildlife refuges, ski resorts and other recreational areas
  • Hydraulic equipment in amusement parks and zoos
  • Hydraulic jacks and other equipment in machine shops
  • Oil drilling rigs and offshore platforms
  • Chain drives
  • Electric motor bearings
  • Service station lifts
  • Hydraulic systems where the equipment manufacturer specifies an ashless, zinc-free antiwear hydraulic oil

Technical Details