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Mobil Turbo 319A-2
Mobil Turbo 319A-2
Synthetic Aircraft-Type Gas Turbine Lubricant
Description
Mobil Turbo 319A-2 is a fully synthetic lubricant developed to meet the performance requirements of Russian gas turbine aircraft engines which operate on mineral-oil-based lubricants. Formulated from a synthetic hydrocarbon combination of polyalphaolefin (PAO) and hindered ester based stock, Mobil Turbo 319A-2 is fortified with a unique chemical additive system. The resulting product has far superior thermal and oxidation stability than mineral-oil-based lubricants. The ability of Mobil Turbo 319A-2 to resist deterioration and deposit formation allows the potential for extended oil drain intervals and less frequent maintenance.
The closely controlled viscosity of Mobil Turbo 319A-2 at -51? C, along with a -60?C pour point, ensure good low-temperature fluidity, permitting engine starting and lubrication at low temperatures. Mobil Turbo 319A-2 exhibits excellent bulk oil stability at temperatures up to 200? C (392? F). The evaporation rate of Mobil Turbo 319A-2 at high temperatures is significantly lower than mineral-oil-based products, and helps minimize oil consumption. The lubricant has excellent resistance to foaming.
Mobil Turbo 319A-2 is compatible with existing seal materials, including F Rubber (Viton A), H Rubber (Buna N), and silicone, as well as 11 metals used in gas turbine construction.
Features and Benefits
Mobil Turbo 319A-2 offers the following advantages and benefits:
· Low evaporation loss and oil consumption
· Reduced sludge and carbon deposits
· Improved bulk oil oxidation stability and extended oil drain intervals
· Compatible with existing seal materials
· Reduced engine maintenance, including potential for extended drain intervals
Applications
Mobil Turbo 319A-2 is recommended for aircraft gas turbine engines that normally operate on mineral-oil-based lubricants, as well as engines approved to operate on oils meeting the specifications listed below.
Mobil Turbo 319A-2 is approved against the following specification of the Russian Central Institute of Aeronatutical Motors (CIAM):
· IMP-10
· MS, 8P, MS-8RK
· 36/1 Ku-A
· VNII NP 50-1-4f and -4u
· B3V and LZ-240
· Mobil Turbo 319A-2 also meets U.S. Military Specification MIL-L-6081C, as well as the essential performance requirements of U.S. MIL-L-7808K, Grade 3.
Typical Characteristics
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Mobil Turbo 319A-2
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Physical properties are listed in the table below. Values shown are typical and may vary slightly.
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Viscosity
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cSt at 40? C
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16.2
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cSt at 100? C
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3.70
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cSt at -40? C
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2917
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cSt at -51? C
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12545
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Flash point, ? C (?F)
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234 (453.2)
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Pour point, ? C (?F)
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-60 (-76)
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Specific Gravity
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0.852
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TAN
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0.03
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Evaporation Loss, %
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0.999
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5 hr at 175 ?C (347?F)
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2.4
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Foam, ml
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Sequence 1, 24?C (75?F)
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30
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Foam Stability, after 1 min settling, ml
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0
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Rubber Swell, %
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NBR-H, 168 hr at 70?C (158?F)
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11.9
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FKM, 72 hr at 175?C (347?F)
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3.0
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