AeroShell Fluid 41 is a mineral hydraulic oil manufactured to a very high level of cleanliness,
and possesses improved fluid properties. AeroShell Fluid 41 contains additives which
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 capable of wide temperature range operation.
AeroShell Fluid 41 is dyed red.
The useful operating temperature range unpressurised is –54°C to 90°C.
The useful operating temperature range pressurised is –54°C to 135°C.
AeroShell Fluid 41 is intended as a hydraulic fluid in all modern aircraft applications
requiring a mineral hydraulic fluid. AeroShell Fluid 41 is particularly recommended where
use of a “superclean” fluid can contribute to improvements in component reliability, and
can be used in aircraft systems operating unpressurised between –54°C to 90°C and
pressurised between –54°C to 135°C.
AeroShell Fluid 41 should be used in systems with synthetic rubber components and must not
be used in systems incorporating natural rubber. Refer to the General Notes at the front of
this section for further information.
AeroShell Fluid 41 is compatible with AeroShell Fluids 4, 31, 51, 61 and 71 and SSF/LGF.
Chlorinated solvents should not be used for cleaning hydraulic components which use
AeroShell Fluid 41. The residual solvent contaminates the hydraulic fluid and may lead to