AeroShell Turbine Oil 500
AeroShell Turbine Oil 500 is a 5 mm2/s synthetic hindered ester oil incorporating a carefully selected and balanced combination of additives to improve thermal and oxidation stability and metal passivation.
APPLICATIONS
AeroShell Turbine Oil 500 was developed essentially to meet the requirements of Pratt & Whitney 521 Type II and MIL-L-23699 specifications and is entirely suitable for most civil and military engines requiring this class of lubricant. AeroShell Turbine Oil 500 is approved for use in a wide range of turbine engines as well as the majority of accessories.
AeroShell Turbine Oil 500 contains a synthetic ester oil and should not be used in contact with incompatible seal materials and it also affects some paints and plastics. Refer to the General Notes at the front of this section for further information.
SPECIFICATIONS
U.S. | Approved MIL - PRF - 23699F Grade STD |
British | Approved DEF STAN 91-101 Grade OX-27 |
French | Equivalent DCSEA 299/A |
Russian | -- |
NATO Code | O-156 |
Joint Service Designation | OX-27 |
Pratt & Whitney | Approved 521C Type II |
General Electric | Approved D-50 TF 1 |
Allison | Approved EMS - 53 (Obsolete) |
EQUIPMENT MANUFACTURER’S APPROVALS
AeroShell Turbine Oil 500 is approved for use in all models of the following engines:
Honeywell | TFE 731, TPE 331, GTCP 30, 36, 85, 331, 660 and 700 series APUs. ALF 502, LF507, LTS101, LTP101, T53, T55, AL5512 |
Allison (Rolls-Royce) | 250 Series, 501 D13, T56, GMA 2100, GMA 3007 |
BMW-Rolls Royce | BR710, BR715 |
CFM International | CFM 56 cleared for flight evaluation |
GE | GE 90, CF6, CT58, CF700, CJ610, CJ805, CF34, CT7, CT64 |
IAE | V2500 Series, all marques |
Motorlet | M601D, E and Z |
Pratt & Whitney | JT3, JT4, JT8, JT9, JT12, PW4000, PW6000 |
Pratt & Whitney Canada | JT15, PT6A, PT6T, ST6, PW100, PW200, PW300, PW500 |
Rolls-Royce | RB211-22B, -524, -535, Trent, Tay, Gnome, Spey, RB183, Adour, M45H, Viper (Series MK 301, 521, 522, 526, 535, 540, 601, 623 and 632) |
Full details of the approval status of AeroShell Turbine Oil 500 in APUs and other engines/accessories is available.
PROPERTIES | MIL-PRF-23699F Grade STD |
TYPICAL |
Oil Type | Synthetic ester | Synthetic ester |
Kinematic Viscosity mm²/s at 100°C at 40°C at -40°C |
4.90 to 5.40 23.0 min 13000 max |
5.17 25.26 8996 |
Flashpoint, Cleveland Open Cup °C |
246 min |
256 |
Pourpoint °C | –54 max | <–54 |
Total Acidity mgKOH/g | 1 max | 0.01 |
Evaporation Loss 6.5 hrs at 204°C % m |
10.0 max |
2.52 |
Foaming | Must pass | Passes |
Swelling of Standard Synthetic Rubber SAE-AMS 3217/1, 72 hrs at 70°C swell % SAE-AMS 3217/4, 72 hrs at 204°C swell % standard silicone rubber 96 hrs at 121°C |
5 to 25 5 to 25 5 to 25 |
Within Limits Within Limits Within Limits |
Thermal Stability/Corrosivity 96 hrs at 274°C – metal weight change mg/cm² – viscosity change % – Total Acid Number Change mgKOH/g |
4 max 5 max 6 max |
0.5 2.69 2.03 |
Corrosion & Oxidation Stability 72 hrs at 175°C 72 hrs at 204°C 72 hrs at 218°C |
Must pass Must pass Must pass |
Passes Passes Passes |
Ryder Gear Test, Relative Rating Hercolube A % |
102 |
117 |
Bearing Test Rig Type 1½ conditions – Overall deposit demerit rating – viscosity change at 40°C % – Total Acid Number change mgKOH/g
– filter deposits (g) |
80.0 max –5 to +30 2 max 3 max |
47 19 1.1 0.4 |
Sonic shear stability – viscosity change at 40°C % |
4 max |
NIL |
Trace metal content | Must pass | Passes |
Sediment mg/l | 10 max | 2.6 |
Ash mg/l | 1 max | 0.05 |
AeroShell Turbine Oil 500 is also approved for use in the industrial and marine versions of the Rolls Royce Trent, Avon, Allison 501K and 570K, Honeywell TF35, Pratt & Whitney GG3/FT3, GG4/FT4, GG12/FT12, all General Electric LM Series of units, Turbomeca industrial engines and certain Solar gas turbine engines.
A viscosity/temperature chart is shown at the end of this section.