Mobil Pegasus™ 610
Mobil industrial , Mexico
Product Description
Mobil Pegasus™ 610 is a high performance natural gas engine oil primarily intended for the lubrication of modern medium and high speed four-cycle engines operating on fuel that contains corrosive materials such as hydrogen sulphide or halogens (compounds containing chlorine, fluorine, etc.). These engines are generally of the lean-burn design where increased manifold pressures prevent sufficient lubricant from reaching the valve guide areas resulting in low oil consumption which can lead to accelerated valve guide and valve recession. This effect also increases the potential for wear and acid attack of upper cylinder components from the acidic materials generated during combustion. Mobil Pegasus 610 is a high TBN gas engine oil with exceptional reserve alkalinity designed to offset the negative effects of these corrosive materials on engine components. The excellent corrosion protection properties help to prevent wear in cylinders, valve areas and bearings which can result in longer engine life and lower maintenance costs. Mobil Pegasus 610 provides excellent anti-wear and anti-scuff performance assuring minimal piston scuffing, scoring and cylinder and ring wear. This oil can also be used for the lubrication of the reciprocating compressors in landfill and biomass gas applications.
Mobil Pegasus 610 is formulated from high quality mineral base oils combined with an advanced technology additive system designed to provide excellent protection of engine and compressor components. This product exhibits a high level of chemical stability and resistance to oxidation and nitration. Mobil Pegasus 610 offers outstanding resistance to valve train wear and protection against deposit and sludge formation. These performance advantages combined with the very effective detergency and dispersancy characteristics control the formation of ash and carbon deposits that could result in poor engine performance and detonation induced pre-ignition.
Features and Benefits
Mobil Pegasus 610 Gas Engine Oil provides an additional margin of protection in those applications using contaminated fuel. Its excellent detergent / dispersant technology also results in cleaner engines, lower wear rates and improved engine performance. The use of this product can result in reduced maintenance costs and improved production capacity. Its excellent chemical and oxidation stability can result in longer drain periods and reduced filter costs. The high reserve alkalinity of this product allows its use in engines operating on fuels with moderate amounts of corrosive materials in the fuel gas.
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Features |
Advantages and Potential Benefits |
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High TBN and Reserve Alkalinity |
Controls wear and corrosion when using contaminated gas Protects valve seats and faces on four-cycle engines Controls combustion chamber ash formation and improves spark plug performance |
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Outstanding Anti-wear and Anti-scuff Properties |
Lower wear of engine components Reduced scuffing of liners in highly loaded gas engines Provides excellent break-in protection |
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Excellent Oxidation and Chemical Stability |
Cleaner engines Extended oil drain intervals Reduced oil filter costs Excellent resistance to oxidation and nitration |
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Effective Corrosion Resistance |
Reduces valve guide wear in four-cycle gas engines Protects bearings and internal components |
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Exceptional Detergent / Dispersant Properties |
Neutralises formation of acids in the oil Protection of upper cylinder and valve train components Cleaner engines Longer oil filter life |
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Non-zinc and Non-Phosphorus Formulation |
Extend catalytic converter life and performance |
Applications
Note : Engines operating on fuel gas with elevated levels of sulphur or chlorine compounds should also have coolant (jacket water) and oil temperatures raised.
• Gas engines operating on fuel that contains moderate levels of hydrogen sulphide (H2S)
• Engines operating on fuel containing other corrosive components such as TOHCl (Total Organic Halides as Chloride)
• Spark ignited four-stroke cycle gas engines with very low oil consumption
• Reciprocating compressors operating on natural gas that contains sulphur or halogens
• High output or naturally aspirated engines operating at or in excess of rated capacity under high temperatures
Specifications and Approvals
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This product has the following approvals: |
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INNIO Waukesha Engine Landfill Gas Applications |
| SIEMENS Energy / GUASCOR All non natural gas engine model types (except 86EM and 100EM) |
Properties and Specifications
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Property |
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Grade |
SAE 40 |
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Ash, Sulfated, mass%, ASTM D874 |
1 |
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Flash Point, Cleveland Open Cup, °C, ASTM D92 |
264 |
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Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 |
13.8 |
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Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 |
130 |
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Pour Point, °C, ASTM D97 |
-18 |
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Viscosity Index, ASTM D2270 |
102 |
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Density 15 C, kg/L, CALCULATED |
0.89 |
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Base Number - Xylene/Acetic Acid, mg KOH/g, ASTM D2896 (*) |
7.3 |
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Density 15.6 C, lb/gal, CALCULATED |
0.890 |
(*) use of other ASTM approved solvents may yield different results
Health and safety
Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx
All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.
09-2024