Mobil Jet Oil 254

Mobil Jet Oil 254 is a third-generation, extra high performance,

synthetic aircraft-type gas turbine lubricant engineered to meet

the performance requirements for gas turbine engines used in

commercial and military aircraft. This product is formulated from a

specially prepared, hindered-ester base stock and fortified with a

unique chemical additive package. The result is a product having

superior thermal and oxidation stability that resists deterioration

and deposit formation while maintaining the physical characteristics

required by builder and military specifications. The physical

properties of Mobil Jet Oil 254 are similar to those of currently

available, earlier-generation gas turbine lubricants. The effective

operating range of the lubricant is between -40°C and 232°C.

Advantages and Potential Benefits:

• Excellent thermal and oxidation stability, reduces the formation

of carbon, sludge deposits, maintains engine efficiency and

extends engine life

• Reduces bulk oil oxidation by 50%

• Excellent wear and corrosion protection helps extends seal,

gear and bearing life thereby reducing engine maintenance

• Viscosity and shear stability across wide temperature

range helps provides effective lubrication at high operating

temperatures

• Chemically stable at high operating temperatures reducing

evaporation losses and lowers oil consumption

• Excellent resistance to foaming maintains film strength under

rigorous operating conditions

• Good low temperature fluidity permits start-up and ensures

effective lubrication of critical components at temperatures as

low as -40 °C

Applications:

Mobil Jet Oil 254 is recommended for aircraft gas turbine engines

of the turbo-jet, turbo-fan, turbo-prop and turbo-shaft (helicopter)

types used in commercial and military service.

• Mobil Jet Oil 254 is also suitable for aircraft-type gas turbine

engines used in industrial or marine applications

• Mobil Jet Oil 254 is approved against the High Thermal

Stability (HTS) classification of U.S. Military Specification

MIL-PRF-23699

• Mobil Jet Oil 254 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 254

• Mobil Jet Oil 254 is completely compatible with all metals used

in gas turbine construction, as well as with F Rubber (Viton A),

H Rubber (Buna N), and other commonly used seal materials