- Mobil Jet Oil II is a high performance aircraft-type gas turbine lubricant formulated with a combination of a highly stable synthetic base fluid and a unique chemical additive package.
- The combination provides outstanding thermal and oxidative stability to resist deterioration and deposit formation in both the liquid and vapour phases, as well as excellent resistance to foaming.
-
Specification and Approvals
Property
|
|
Autogenous-ignition temperature test, deg.C, 30 CFR 35.20
|
404
|
Change in Kinematic Viscosity, 72 h @ -40 C, %, ASTM D2532
|
0.15
|
Density @ 15 C, kg/l, ASTM D4052
|
1.0035
|
Elastomer Compatibility, AMS-3217/4 (72hrs @204C), % swell, FTMS 791-3604
|
15.6
|
Elastomer Compatibility,AMS-3217/1(72hr @70C), % swell, FTMS 791-3604
|
16.4
|
Evaporation Loss, 6.5 h, 204 C, mass%, ASTM D972(mod)
|
3.0
|
Evaporation Loss, 6.5 hr @ 232 C, 29.5" Hg, mass %, ASTM D972(mod)
|
10.9
|
Evaporation Loss, 6.5 hr @ 232 C, 5.5" Hg, mass %, ASTM D972(mod)
|
33.7
|
Fire Point, °C, ASTM D92
|
285
|
Flash Point, Cleveland Open Cup, °C, ASTM D92
|
270
|
Foam, Sequence I, Tendency, ml, ASTM D892
|
8
|
Foam, Sequence II, Tendency, ml, ASTM D892
|
10
|
Foam, Sequence III, Tendency, ml, ASTM D892
|
8
|
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445
|
5.1
|
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445
|
27.6
|
Kinematic Viscosity @ -40 C, mm2/s, ASTM D445
|
11000
|
Pour Point, °C, ASTM D5950
|
-59
|
Shear Stability, %KV loss, ASTM D2603
|
0.9
|
Total Acid Number, mgKOH/g, ARP 5088
|
0.03
|
Ryder Gear Load Carrying, % vs ref., FTMS 791-6508
|
115
|
Applications
Mobil Jet Oil II is recommended for aircraft gas turbine engines of the turbo-jet, turbo-fan, turbo-prop, and turbo-shaft (helicopter) types in commercial and military service. It is also recommended for aircraft-type gas turbine engines used in industrial or marine applications. Mobil Jet Oil II is approved against the Standard Performance (STD) classification of U.S. Military Specification MIL-PRF-23699. It is also compatible with other synthetic gas turbine lubricants meeting MIL-PRF-23699. However, mixing with other products is not recommended because the blend would result in some loss of the performance characteristics of Mobil Jet Oil II. Mobil Jet Oil II is compatible with all metals used in gas turbine construction, as well as with F Rubber (Viton A), H Rubber (Buna N), and silicone seal materials.
Mobil Jet Oil II has the following builder approvals *
Engines
Honeywell/Lycoming-Turbines
Rolls-Royce/Allison Engine Company
CFM International
General Electric Company
International Aero Engines
Pratt and Whitney Group
Pratt and Whitney, Canada
Rolls-Royce Limited
SNECMA
Honeywell/Garrett Turbine Engine Company
Turbomeca
Accessories
Honeywell-Auxiliary power units and air cycle machines
Hamilton Standard-Starters
Hamilton Sundstrand Corp.-APUs, constant-speed drives and integrated-drive generators
* Specific engine or equipment approval must be verified with the builder