Mobil Jet Oil II – Aircraft Gas Turbine Lubricant
Mobil Jet Oil II is a fully synthetic aircraft-type gas turbine lubricant developed for demanding aviation environments. It is formulated from a highly stable synthetic base stock combined with a proprietary additive system to provide exceptional thermal and oxidative stability in both liquid and vapor phases.
The oil is engineered to resist carbon and sludge formation while maintaining viscosity, film strength, and lubrication performance at elevated operating temperatures. Its effective operating range spans from -40°C to 204°C (-40°F to 400°F), ensuring reliable performance in both cold starts and high-temperature cruise conditions.
Mobil Jet Oil II meets the requirements of MIL-PRF-23699-STD and is listed under PRI-QPL-AS5780/SPC, making it suitable for a wide range of commercial and military turbine engines.
Key Features & Benefits
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Meets MIL-PRF-23699-STD
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Listed under PRI-QPL-AS5780/SPC
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Excellent thermal and oxidation stability
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Reduces carbon and sludge deposit formation
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Maintains viscosity and film strength across wide temperature ranges
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Effective lubrication at high operating temperatures
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Excellent wear and corrosion protection
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Extends gear and bearing life
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Reduces oil evaporation losses
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Low pour point for improved cold start performance
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Chemically stable synthetic formulation
Applications
Mobil Jet Oil II is recommended for:
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Turbojet engines
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Turbofan engines
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Turboprop engines
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Turboshaft (helicopter) engines
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Aircraft-type gas turbines used in industrial or marine applications
It is compatible with other synthetic turbine lubricants meeting MIL-PRF-23699; however, mixing is not recommended as it may reduce performance characteristics.
The oil is compatible with metals commonly used in turbine construction and with seal materials such as:
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Fluorocarbon (Viton A)
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Nitrile rubber (Buna N)
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Silicone elastomers
Specifications & Approvals
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MIL-PRF-23699-STD
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PRI-QPL-AS5780/SPC
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