AeroShell Turbine Oil 308
A 3 mm虏/s synthetic ester oil with additives targeted at oxidation and corrosion resistance, and wear reduction. It offers dependability for older engines that require a MIL-PRF-7808 oil.
Specifications & approvals
| Country | Specification |
|---|---|
| United States | MIL-PRF-7808M Grade 3 |
| NATO Code | O-148 |
| Joint Service Designation | OX-9 |
The TDS and MSDS are in English, but you can find these documents for other countries in the .
Applications
AeroShell Turbine Oil 308 was developed specifically for use in particular models of aircraft prop and turbojet engines for which a MIL-PRF-7808 (formerly MIL-L-7808) oil is required.
AeroShell Turbine Oil 308 contains a synthetic ester oil and should not be used in contact with incompatible seal, and it also affects some paints and plastics.
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 oil to an authorised collection point. Do not discharge into drains, soil or water.
Additional information
Advice
- Advice on applications not covered here may be obtained from your Shell representative.
Typical Physical Characteristics
| Properties | Method | MIL-PRF-7808M Grade 3 | Typical |
|---|---|---|---|
| Oil type | - | Synthetic ester | Synthetic ester |
| Kinematic Viscosity @100掳C mm虏/s | ASTM D445 | 3.0 min | 3.1 |
| Kinematic Viscosity @40掳C mm虏/s | ASTM D445 | 11.5 min | 12 |
| Kinematic Viscosity @-51掳C mm虏/s | ASTM D2532 | 13 000 max | 7 600 |
| Flash Point 掳C | ASTM D92 | 210 min | 225 |
| Total Acidity mgKOH/g | ASTM D664 | 0.40 max | 0.27 |
| Trace metal content | - | Must pass | Passes |
| Foaming tendency | ASTM D892 | Must pass | Passes |
| Evaporation loss (6.5 hrs) @205掳C %m | ASTM D972 | 30 max | 28 |
| Corrosion test 鈥� Silver @232掳C g/m虏 | FED-STD-791 M.5305 | +/- 4.5 max | 0.01 |
| Corrosion test 鈥� Bronze @232掳C g/m虏 | FED-STD-791 M.5305 | +/- 4.5 max | 0.09 |
| Deposition Test WADC 鈥� deposit rating | FED-STD-791 M.5003 | 1.5 max | 0.8 |
| Deposition Test WADC 鈥� acid number change, % | FED-STD-791 M.5003 | 20 max | 2 |
| Deposition Test WADC 鈥� viscosity change @40掳C, % | FED-STD-791 M.5003 | 100 max | 12 |
| Elastomer compatibility SAE AMS 3217/1, 168 hrs @70掳C, % swell | FED-STD-791 M.3604 | 12 to 35 | 32 |
| Elastomer compatibility SAE AMS 3217/4, 72 hrs @175掳C, % swell | FED-STD-791 M.3432 | 2 to 25 | 16 |
| Elastomer compatibility SAE AMS 3217/4, 72 hrs, tensile strength change @175掳C, % | FED-STD-791 M.3432 | 50 max | -18 |
| Elastomer compatibility SAE AMS 3217/4, 72 hrs, elongation change @175掳C, % | FED-STD-791 M.3432 | 50 max | -16 |
| Elastomer compatibility SAE AMS 3217/4, 72 hrs, hardness change @175掳C, % | FED-STD-791 M.3432 | 20 max | -8 |
| Elastomer compatibility SAE AMS 3217/5, 72 hrs @150掳C, % swell | FED-STD-791 M.3432 | 2 to 25 | 9 |
| Elastomer compatibility SAE AMS 3217/5, 72 hrs, tensile strength change @150掳C, % | FED-STD-791 M.3432 | 50 max | -9 |
| Elastomer compatibility SAE AMS 3217/5, 72 hrs, elongation change @150掳C, % | FED-STD-791 M.3432 | 50 max | -27 |
| Elastomer compatibility SAE AMS 3217/5, 72 hrs, hardness change @150掳C, % | FED-STD-791 M.3432 | 20 max | -5 |
| Lead Corrosion | FED-STD-791 M.5321 | 9.3 max | 0.2 |
| Corrosion and Oxidation Stability 96h @ 200掳C | ASTM D4636 | Must pass | Passes |
| Gravimetric particulate contamination | FED-STD-791 M.3013 | Must pass | Passes |
| Gear load carrying capacity | FED-STD-791 FTM 6508 | 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.
