Product Overview
Eastman Turbo Oil 2389™ is a low viscosity gas turbine oil, offering exceptional cold-start capability. Many large commercial airlines use Turbo Oil 2389 in their auxiliary power units (APUs), because of the reliability it affords this equipment when starting after long, cold-soaks at altitude. Turbo Oil 2389 is the only MIL-PRF-7808 Grade 3 qualified oil that is fully approved in all Honeywell and UTC Aerospace Systems APUs. Turbo Oil 2389 is formulated from synthetic base stocks and advanced technology additives, to provide the combined thermal and oxidation stability properties of commercial Type II lubricants, with the low temperature fluidity characteristics of a 3 cSt oil. It also has load-carrying ability equal to, or better than, other approved MIL-PRF-7808 Grade 3 oils. Fluids ApplicationsAerospaceAviation turbine oil (ato)Key Attributes3 cSt synthetic lubricantCold weatherTypical PropertiesPropertyTest MethodTypical Value, UnitsGeneralDensity @ 15°CASTM D 12980.9511 kg/LViscosity, Kinematic @ 100°CASTM D 4453.19 mm2/s @ 40°CASTM D 44512.46 mm2/s @ -51°C after 3 hoursASTM D 25327,800 mm2/sPour PointASTM D 97-60 °CFlash PointASTM D92220 °CTotal Acid Number (Average)ASTM D 6640.20 mg KOH/gDeposition Testa Acid Number ChangeFED-STD-791, 500311.2 mg KOH/g Average Viscosity ChangeFED 500317.77 % Oil ConsumptionFED-STD-791, 5003100 mlEvaporation Loss 6.5 hrs @ 205°CASTM D 97220.0 %Foaming Volumeb 110°C @ 1000 cc/minFED-STD-791, 321420/8 ml/sec 110°C @ 1500 cc/minFED-STD-791, 321455/8 ml/sec 110°C @ 2000 cc/minFED-STD-791, 3214170/18 ml/sec 80°C @ 1000 cc/minFED-STD-791, 321415/8 ml/sec 80°C @ 1500 cc/minFED-STD-791, 321445/8 ml/sec 80°C @ 2000 cc/minFED-STD-791, 3214105/15 ml/secCorrosion & Oxidative Stabilityc Aluminium Weight ChangeFED-STD-791, 53070.00 mg/cm2 Bronze Weight ChangeFED-STD-791, 53070.04 mg/cm2 Iron Weight ChangeFED-STD-791, 53070.02 mg/cm2 M-50 Weight ChangeFED-STD-791, 5307-0.02 mg/cm2 Magnesium Weight ChangeFED-STD-791, 5307-0.02 mg/cm2 Neut. NoFED-STD-791, 53070.96 Silver Weight ChangeFED-STD-791, 5307-0.02 mg/cm2 Titanium Weight ChangeFED-STD-791, 53070.00 mg/cm2 Viscosity Change @ 40°CFED-STD-791, 53079.5 % Eastman Chemical Eastman Chemical Industrial Chemicals,Fluids and Lubricants Aviation
Key Attributes
Typical Technical Properties
Product-specific technical values. Confirm current specifications with the supplier before commercial use.
| Property | Typical value | Condition | Test method / source |
|---|---|---|---|
| Property | Test Method | Typical Value, Units | |
| @ 15°C | ASTM D 1298 | 0.9511 kg/L | |
| @ 100°C | ASTM D 445 | 3.19 mm2/s | |
| @ 40°C | ASTM D 445 | 12.46 mm2/s | |
| @ -51°C after 3 hours | ASTM D 2532 | 7,800 mm2/s | |
| Pour Point | ASTM D 97 | -60 °C | |
| Flash Point | ASTM D92 | 220 °C | |
| Total Acid Number (Average) | ASTM D 664 | 0.20 mg KOH/g | |
| Acid Number Change | FED-STD-791, 5003 | 11.2 mg KOH/g | |
| Average Viscosity Change | FED 5003 | 17.77 % | |
| Oil Consumption | FED-STD-791, 5003 | 100 ml | |
| 6.5 hrs @ 205°C | ASTM D 972 | 20.0 % | |
| 110°C @ 1000 cc/min | FED-STD-791, 3214 | 20/8 ml/sec | |
| 110°C @ 1500 cc/min | FED-STD-791, 3214 | 55/8 ml/sec | |
| 110°C @ 2000 cc/min | FED-STD-791, 3214 | 170/18 ml/sec | |
| 80°C @ 1000 cc/min | FED-STD-791, 3214 | 15/8 ml/sec | |
| 80°C @ 1500 cc/min | FED-STD-791, 3214 | 45/8 ml/sec | |
| 80°C @ 2000 cc/min | FED-STD-791, 3214 | 105/15 ml/sec | |
| Aluminium Weight Change | FED-STD-791, 5307 | 0.00 mg/cm2 | |
| Bronze Weight Change | FED-STD-791, 5307 | 0.04 mg/cm2 | |
| Iron Weight Change | FED-STD-791, 5307 | 0.02 mg/cm2 | |
| M-50 Weight Change | FED-STD-791, 5307 | -0.02 mg/cm2 | |
| Magnesium Weight Change | FED-STD-791, 5307 | -0.02 mg/cm2 | |
| Neut. No | FED-STD-791, 5307 | 0.96 | |
| Silver Weight Change | FED-STD-791, 5307 | -0.02 mg/cm2 | |
| Titanium Weight Change | FED-STD-791, 5307 | 0.00 mg/cm2 | |
| Viscosity Change @ 40°C | FED-STD-791, 5307 | 9.5 % |
Product Identity
| Chemical name | Fluids |
|---|
Applications
Application areas documented for this product grade.
Processing & Availability
- Additional product information
- General
- Additional product information
- Density
- Additional product information
- Viscosity, Kinematic
- Additional product information
- Deposition Testa
- Additional product information
- Evaporation Loss
- Additional product information
- Foaming Volumeb
- Additional product information
- Corrosion & Oxidative Stabilityc
Technical Documents & Source References
No technical PDF is referenced in the source record for this product.