Fluids and Preservatives

Aircraft preservatives are lubricants that are used to protect the aircraft, including engines and components. The AeroShell range features products for calibration, avionics cooling and hydraulic use, together with internal and external preservatives for piston and turbine engine aircraft.

Fluids and preservatives have specialized uses in an aircraft, therefore it is important that you get the right recommendations on which products are most suitable for your needs. Alpha Pioneer can help you there. Contact us for more information.

Fluids And Preservatives

Landing Gear Hydraulic Fluids

AeroShell Fluid 41

Mineral, Super Clean
MIL-PRF-5606

Super-clean, mineral hydraulic fluid

  • Enhanced system reliability by protecting against system failure through super cleanliness
  • Long component life through its anti-wear, anti-oxidant and corrosion inhibition system and shear stability performance
  • System efficiency through its low-temperature performance and a high viscosity index

Specification and approval

  • MIL-PRF-5606
  • DEF STAN 91-48 Grade Superclean
  • H-515
  • OM-15
SDS
TDS

AeroShell Fluid LGF

Mineral
BMS 3-32 Type 2

Extreme-pressure operational hydraulic fluid

  • Based on AeroShell Fluid 41 which already provides strong fluid oxidation stability and anti-wear performance
  • Mineral-based hydraulic fluid
  • The extreme-pressure additive helps to protect components from metal-to-metal wear during landings
  • Particularly suitable for low-temperature operations, thanks to good low-temperature properties

Specification and approval

  • Qualified to Boeing BMS 3-32 Type 2
SDS
TDS

AeroShell Fluid 31

Synthetic, Super Clean, Fire-Resistant
MIL-PRF-83282

Super-clean, fire-resistant, synthetic hydrocarbon hydraulic fluid

  • Higher flash point for greatly improved fire resistance compared with mineral hydraulic fluids
  • Helps to prevent hydraulic system failure by being manufactured using super-clean procedures
  • Protection and efficiency through base oil and advanced additives that give good low-temperature performance, thermal stability, oxidation and corrosion resistance, wear protection and anti-foaming properties

Specification and approval

  • MIL-PRF-83282
  • H-537
  • OX-19
SDS
TDS

AeroShell Fluid 61

Mineral, Super Clean
MIL-PRF-46170 (Type I)

Preservative, synthetic hydrocarbon hydraulic fluid

  • Based on AeroShell Fluid 31 which is specially designed to provide strong fluid oxidation stability and good hydraulic-system corrosion protection
  • Additional additives that help to improve its corrosion-prevention properties for hydraulic components in storage
  • No need to drain and flush the system when changing to operational fluid AeroShell Fluid 31

Specification and approval

  • MIL-PRF-46170 (Type I)
  • H-544
SDS
TDS

Specialist Fluids

AeroShell Fluid 12

Instrument Lubricating Oil
MIL-PRF-6085

Instrument lubricating oil

  • Low-volatility synthetic ester for lubricating aircraft instruments such as gyros and for gimbal bearings
  • Also used for separately-lubricated high-speed turbines and compressors, air-cycle and electronic equipment, and for general lubrication
  • Low evaporation rate at high and low temperatures
  • Oxidation and corrosion inhibited
  • Good high and low-temperature characteristics

Specification and approval

  • MIL-PRF-6085
  • O-147
SDS
TDS

AeroShell Fluid 3

General Purpose Lubricating Oil
MIL-PRF-7870

General-purpose mineral lubricating oil

  • Relatively low viscosity mineral oil recommended for general lubricant of aircraft parts
  • Low freezing point and resistance to evaporation, oxidation and corrosion to make it:
    • An excellent lubricant for instruments requiring a light oil with good low temperature characteristics
    • Other applications include hinges, pivot points, shaft joints, linkage pins, bearings, pulleys, cables, camera mechanisms and radio and radar gear

Specification and approval

  • MIL-PRF-7870
  • O-142
SDS
TDS

AeroShell Fluid 5-MA

Helicopter Gearbox Oil
MIL-PRF-6086 Grade Medium

Medium viscosity, extreme-pressure gearbox oil

  • Lubrication of high-load gears
    • Includes additives providing extreme-pressure and oxidation performance
  • Particularly recommended for the translation units of contra-rotating propellers, radar gearboxes and constant-speed alternator drives
  • Used in helicopter transmissions (gearboxes) requiring a MIL-PRF-6086 oil and suitable for heavily loaded pins, bushes and gear mechanisms. It must not be used in engines

Specification and approval

  • MIL-PRF-6086 Grade Medium
  • O-155
  • OEP-70
SDS
TDS

AeroShell Fluid S.8350

Helicopter Gearbox Oil
OEP-215

Extreme-pressure helicopter gearbox oil

  • For use in helicopter rotor gear-drive shafts and pitch-control mechanisms, and wherever high loads and slow speeds require the use of an SAE 90 extreme-pressure gear oil. It must not be used in engines

Specification and approval

  • OEP 215
SDS
TDS

AeroShell Calibrating Fluid 2

Calibrating fluid for Aircraft Fuel Systems
MIL-PRF-7024 Type 2

Calibrating fluid for fuel system components

  • Stoddard solvent for use specifically in fuel system calibration by engine and component manufacturers
  • The differences in its specification compared to normal jet fuel enable fuel systems to be calibrated more accurately
  • Designed to ensure that fuel management systems work efficiently

Specification and approval

  • MIL-PRF-7024 Type 2
SDS
TDS

Preservation Additives and Oils

AeroShell Turbine Oil 2

Fuel System Preservation (2-Centistoke)
MIL-PRF-6081 Grade 1010 & 1010N

Mineral turbine oil for fuel system preservation

  • AeroShell Turbine Oil 2 is a 2mm²/s mineral turbine oil blended from mineral base stocks to which a pour-point depressant and an anti-oxidant have been added
  • AeroShell Turbine Oil 2 is widely used for inhibiting fuel systems and fuel system components during storage
  • AeroShell Turbine Oil 2 is an analogue to the Russian Grade MK-8 and can therefore be used in engines which require the use of MK-8

Specification and approval

  • MIL-PRF-6081 Grade 1010 & 1010N
  • OM-10
SDS
TDS

AeroShell Turbine Oil 3

Fuel System Preservation (2-Centistoke)

Reliability for Auxiliary Power Units (APUs)

  • AeroShell Turbine Oil 3 is a 3mm²/s mineral turbine oil blended from mineral base stocks to which an anti-corrosion additive has been added
  • AeroShell Turbine Oil 3 was developed for early pure jet engines and is still approved for some versions of these engines plus the Turbomeca Astazou, Artouste, Turmo, Bastan and Marbore engines
  • AeroShell Turbine Oil 3 is the recommended alternative to AeroShell Fluid 1

Specification and approval

  • Meets DEF STAN 91-99
  • OM-11
  • O-135
SDS
TDS