Castrol Carelube HTG 32 is a biodegradable hydraulic fluid formulated using vegetable ester oil and additives to prevent corrosion, wear and oxidation.

Carelube HTG 32 is recommended for use where leakage or spillage may present a risk of harm to the environment or in environmentally sensitive areas such as waterways, agriculture, forestry, and mining and construction industries. It can also be used in metalworking applications where excellent lubricity is necessary such as in cutting and deformation processes especially for steel and non ferrous materials. Carelube HTG 32 is miscible with conventional mineral oil- based fluids but in order to maximise the performance benefits of these products it is recommended to minimise residues of other lubricants in the lubrication system through draining or flushing.

Carelube HTG 32 is classified as meeting the requirements of ISO 6743/4 - HETG and DIN 51524 Part 4 specifications. It also demonstrates superior biodegradation performance in accordance with the CEC-L-33-A-93 and OECD 301B test methods.


  • Extremely high viscosity index (VI) & excellent thermal stability ensures lubrication and protection over a wide temperature range.
  • Rapidly biodegradable ensures accidental leaks or spills have a reduced impact on the environment.
  • Excellent lubricity, anti-corrosion and anti-wear characteristics prolongs machine life and reduces maintenance costs.
  • Naturally good shear stability and a longer service life compared with other vegetable oil based hydraulic fluids.

Product Data Sheet

Material Safety Data Sheet


AW 32