AeroShell Grease 6 General-Purpose Airframe Grease
AeroShell Grease 6 is a mineral oil-based, general-purpose airframe grease developed for aircraft components operating across a temperature range of -40°C to +121°C (-40°F to +250°F). Its clay-thickened formulation provides mechanical stability, oxidation and corrosion resistance, water-washout resistance, and low-noise performance.
AeroShell Grease 6 is used in anti-friction bearings, gearboxes, and plain bearings. Its consistency and stability under mechanical stress make it suitable for general aircraft lubrication applications within its specified operating range.
Key Features
- Mineral oil-based airframe grease
- Clay-thickened formulation
- Useful operating temperature range of -40°C to +121°C (-40°F to +250°F)
- Inhibited against oxidation and corrosion
- Provides resistance to water washout
- Maintains consistency under mechanical stress and shear
- Low-noise capability
Recommended Applications
AeroShell Grease 6 is a general-purpose airframe grease used for:
- Anti-friction bearings
- Gearboxes
- Plain bearings
- Airframes
Specifications, Approvals, and Recommendations
- MIL-PRF-24139B
- Meets MIL-G-7711A (obsolete)
- DCSEA 382/A (equivalent)
- NATO Code G-382
- Rolls-Royce OMat455
Typical Technical Characteristics
The following values are typical of current production and should not be treated as product specifications.
| Property |
Test Method |
Typical Value |
| Oil type |
Not specified |
Mineral |
| Thickener type |
Not specified |
Clay |
| Color |
Not specified |
Golden yellow |
| Base oil viscosity at 40°C |
ASTM D445 |
35 mm²/s |
| Base oil viscosity at 100°C |
ASTM D445 |
5.5 mm²/s |
| Useful operating temperature range |
Not specified |
-40°C to +121°C |
| Dropping point |
ASTM D2265 |
Minimum 300°C |
| Worked penetration at 25°C |
ASTM D217 |
285 |
| Worked penetration after 100,000 strokes |
ASTM D217 |
263 |
| Oxidation stability after 100 hours at 99°C |
ASTM D942 |
2 psi |
| Oil separation after 30 hours at 100°C |
ASTM D6184 |
2.0% mass |
| Water washout at 38°C |
ASTM D1264 |
3% mass |
| Four-ball EP load-wear index |
ASTM D2596 |
35 kgf |
| Apparent viscosity |
ASTM D1092 |
133 P |
| Low-temperature starting torque at -29°C |
ASTM D1478 |
0.21 Nm |
| Low-temperature running torque at -29°C |
ASTM D1478 |
0.03 Nm |
| Copper corrosion after 24 hours at 100°C |
FED-STD-791-5309 |
Passes |
| Particle count |
FED-STD-791 M.3005 |
Passes |
| Rust test at 52°C for 48 hours |
ASTM D1743 |
Passes |
Frequently Asked Questions
What is AeroShell Grease 6 used for?
AeroShell Grease 6 is used as a general-purpose aircraft airframe grease for anti-friction bearings, gearboxes, and plain bearings operating between -40°C and +121°C.
What type of grease is AeroShell Grease 6?
AeroShell Grease 6 is a mineral oil-based aircraft grease with a clay thickener. It is formulated to provide mechanical stability, oxidation and corrosion resistance, water resistance, and low-noise performance.
Is AeroShell Grease 6 intended for aircraft wheel bearings?
Shell primarily positions AeroShell Grease 6 as a general-purpose airframe grease for anti-friction bearings, gearboxes, and plain bearings. It is not a high-temperature wheel-bearing grease.
Is AeroShell Grease 6 mineral-based or synthetic?
AeroShell Grease 6 is a mineral-based oil and is not synthetic. For an alternative general purpose grease that’s synthetic, consult needed specifications to see if AeroShell Grease 7 is applicable.
What makes AeroShell Grease 6 different from other AeroShell Greases?
AeroShell Grease 6 is a lower-viscosity, general-purpose airframe grease intended for anti-friction bearings, gearboxes, and plain bearings. Other AeroShell greases use different formulations for more specialized operating conditions. AeroShell Grease 6 lacks a specialized niche and, instead, operates within a multitude of different applications.
What AeroShell Grease 6 package sizes does Petroleum Service Company offer?
Petroleum Service Company offers AeroShell Grease 6 in several package configurations for different aircraft maintenance requirements:
- 10-tube case (SKU: 550067090-10)
- 30-tube case (SKU: 550067090)
- Case of four 6.6 lb cans (SKU: 550043630)
- 17 kg pail (SKU: 550043621)
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