Aviation Hydraulic Fluids and Preservatives

Keep your aircraft hydraulics moving and components preserved for longer with the AeroShell range of aviation hydraulic fluids and preservatives. Each of our fluids serves a much-needed purpose within today’s aviation needs, from calibration and preservation to hydraulic use. They meet a variety of specifications, including MIL-SPECs, and offer a high-quality option whenever these specifications must be met.

Mineral hydraulic fluids

AeroShell Fluid 41

  • Super clean mineral hydraulic fluid.
  • Approved to MIL-PRF-5606.

AeroShell Fluid 41 is a mineral hydraulic oil manufactured to a very high level of cleanliness and it possesses improved fluid properties.

It contains additives that provide excellent low-temperature fluidity as well as exceptional anti-wear, oxidation – corrosion inhibition and shear stability. In addition, metal de-activators and foam inhibitors are included in this high-viscosity index fluid to enhance performance in hydraulic applications.

AeroShell Fluid 41 is dyed red.


AeroShell Landing Gear Fluid

  • Extreme pressure operational hydraulic fluid;
  • Based on AeroShell Fluid 41 which already provides strong oxidation stability and anti-wear performance; and
  • Approved to BMS 3-32 Type 2.

AeroShell Landing Gear Fluid (LGF) is a mineral hydraulic fluid (MIL-PRF-5606) to which additional additives have been added to improve the extreme pressure characteristics and the fluid’s natural lubricity. The lubricity agent provides a stable thin film layer to the metal surfaces at mild operating conditions. When severe conditions exist (landing/touchdown), the extreme pressure additive supplies the load carrying needed at the metal-to-metal surfaces to prevent the occurrence of such phenomena as ‘ladder cracking’ and ‘slip stiction’ of the piston component of the landing gear.

AeroShell LGF is dyed yellow.


Synthetic hydrocarbon hydraulic fluids

AeroShell Fluid 31

    • Super-clean, fire-resistant, synthetic hydrocarbon hydraulic fluid.
    • Approved to MIL-PRF-83282.

    AeroShell Fluid 31 is a synthetic hydrocarbon-based aircraft hydraulic fluid with greatly improved fire resistance characteristics. AeroShell Fluid 31 has a specially designed base stock that imparts a relatively high flash point, excellent low-temperature properties and good oxidation and thermal stability. In addition, AeroShell Fluid 31 is formulated with high-technology additives to provide oxidation and corrosion resistance, anti-wear and anti-foaming protection. AeroShell Fluid 31 is superclean filtered to ensure optimum performance in particulate monitored systems.

    AeroShell Fluid 31 is dyed red.

    TDS | MSDS

AeroShell Fluid 61

    • Preservative, synthetic hydrocarbon hydraulic fluid.
    • Approved to MIL-PRF-46170 Type 1.

    AeroShell Fluid 61 is a synthetic hydrocarbon base hydraulic fluid specifically inhibited to provide excellent oxidation stability for the oil and good corrosion preventive protection to the hydraulic system.

    TDS | MSDS

The AeroShell preservation oil range

AeroShell Fluid 2XN

Engine preservative mineral concentrate for protecting infrequently used engines from corrosion.


Other AeroShell fluids

AeroShell Fluid 3

General purpose, low-temperature mineral lubricating oil.


AeroShell Fluid 12

Low-temperature, synthetic ester instrument lubricating oil.


AeroShell Fluid 5M-A

Medium-viscosity, extreme-pressure mineral oil used in propellers and helicopter gearboxes


AeroShell Fluid S.8350

Extreme-pressure mineral oil for use in helicopter rotor gears and gearboxes.


AeroShell Calibrating Fluid 2

Calibrating fluid for use specifically in fuel system calibration by engine and component manufacturers.


AeroShell Compound 07

De-icing fluid for in-flight systems and on runway.


AeroShell Fluid 602

Synthetic avionic cooling fluid.


AeroShell Turbine Oil 2

2mm2/s mineral oil for fuel system inhibition.


AeroShell Turbine Oil 3*

3mm2/s mineral oil for fuel system inhibition.