Mobil Jet Oil II

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. The effective operating range of Mobil Jet Oil II is between -40ºC (-40 ºF) and 204 ºC (400ºF).

Viscosity cSt @ 40ºC (102ºF) 27.6
Pour Point, ºC (ºF), ASTM D 97 -59 (-74)

Mobil Jet Oil II is formulated to meet the demanding requirements of aircraft-type gas turbines operating over a wide range of severe operating conditions. The product has a high specific heat in order to ensure good heat transfer from oil-cooled engine parts. In extensive laboratory testing and in-flight performance, Mobil Jet Oil II exhibits excellent bulk oil stability at temperatures up to 204ºC (400 ºF). The evaporation rate at these temperatures is low enough to prevent excessive loss of volume.

- Excellent thermal and oxidation stability
Reduces the formation of carbon and sludge deposits. Maintains engine efficiency and extends engine life
- Excellent wear and corrosion protection
Extends gear and bearing life Reduces engine maintenance
- Retains viscosity and film strength across wide temperature range
Provides effective lubrication at high operating temperatures
- Chemically stable
Reduces evaporation losses and lowers oil consumption
- Low pour point
Eases start-up in low ambient temperature conditions

Mobil Jet Oil II is recommended for aircraft gas turbine engines of the turbo-jet, turbo-fan, turbo-prop, and turboshaft (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-Turbine engines
-Rolls-Royce/Allison Engine Company
-CFM International
-General Electric Company
-IAE International
-Pratt and Whitney Group
-SNECMA
-Pratt and Whitney, Canada
-Rolls-Royce Limited
-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 generator