AeroShell Grease 5
AeroShell Grease 5 is a clay-based grease that performs at high temperatures, offering reliable load-carrying capacity, oxidation resistance, and water resistance.
Features and benefits
High-temperature stability
Performs reliably in extreme temperatures, maintaining stability between -18掳C and +149掳C.
High load-carrying capacity
Designed to handle heavy loads, ensuring critical components remain protected under stress.
Corrosion & oxidation resistance
Offers protection against oxidation and corrosion, aiding lifespan extension of components.
Water washout resistance
Maintains effective lubrication in wet or humid conditions, resisting water washout.
Versatile application range
Ideal for aircraft wheel bearings, propellers, engine accessories, and other high-speed, high-temperature components.
Specifications & approvals
| Country / OEM | Specification |
|---|---|
| United States | MIL-G-3545C (obsolete) |
| British | DTD.878A (obsolete) |
| French | DCSEA 359/A (equivalent) |
| NATO Code | G-359 (obsolete) |
| Joint Service Designation | XG-277 (obsolete) |
| Rolls-Royce | OMat428A |
The TDS and MSDS are in English, but you can find these documents for other countries in the .
Applications
AeroShell Grease 5 is particularly effective for use as a wheel bearing grease, especially when landing speeds are high, and is suitable for the lubrication of aircraft and engine accessories operating at high speeds and at relatively high temperatures, e.g. magnetos, generators and starters. For the lubrication of rolling bearings which are required to start at temperatures as low as 鈥�18掳C, an adequate period should be allowed for the grease to channel.
AeroShell Grease 5 is also commonly used on piston aircraft propellers.
Health, Safety and Environment
Health and Safety
- This product is unlikely to present any significant health or safety hazard when properly used in the recommended application and good standards of personal hygiene are maintained.
- Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and water.
- Guidance on Health and Safety is available on the appropriate Safety Data Sheet, which can be obtained from .
Protect the Environment
- Take used lubricant to an authorised collection point. Do not discharge into drains, soil or water.
Additional information
Advice
- AeroShell Grease 5 is only available in the Americas.
- Advice on applications not covered here may be obtained from your Shell representative.
Technical Talk
Greases
Get to grips with the basics of aircraft greases by reading this handy article, discussing how greases are created and their best applications for aviation engines.
Typical Physical Characteristics
| Properties | Method | MIL-G-3545C | Typical |
|---|---|---|---|
| Oil type | - | - | Mineral |
| Thickener type | - | - | Clay |
| Colour | Appearance | - | Amber |
| Base Oil Viscosity @40掳C mm虏/s | ASTM D445 | - | 500 to 525 |
| Base Oil Viscosity @100掳C mm虏/s | ASTM D445 | - | 32 |
| Useful operating temperature range 掳C | - | - | 鈥�18 to +149 |
| Drop point 掳C | ASTM D2265 | 177 min | Min 288 |
| Worked penetration @25掳C | ASTM D217 | 250 to 300 | 281 |
| Oxidation Stability 100h @99掳C, psi | ASTM D942 | 10 max | 5 |
| Oxidation Stability 500h @99掳C, psi | ASTM D942 | 25 max | 5 |
| Oil separation 30 hrs @100掳C %m | ASTM D6184 | 5 max | 2 |
| Water Washout @41掳C %m | ASTM D1264 | 20 max | 4.5 |
| Low Temperature Torque - @-17.8掳C Nm Start | ASTM D1478 | 1.471 max (15000 g-cm) | 0.3432 |
| Low Temperature Torque - @-17.8掳C Nm Run | ASTM D1478 | 0.4903 max (5000 g-cm) | 0.0579 |
| Copper Corrosion 24h @ 100掳C | FED-STD-791- 5309 | Must pass | Passes |
| Particle Count part/ml | FED-STD-791 M.3005 | Must pass | Passes |
| Rust Test | ASTM D1743 | Must pass | Passes |
These characteristics are typical of current production. Whilst future production will conform to Shell's specification, variations in these characteristics may occur.
