Mobil Pegasus 1 Gas Engine Oil Product Description Mobil Pegasus™ 1 is a high performance synthetic gas engine oil designed to meet the highest performance requirements of the most demanding naturally aspirated and turbocharged stoichiometric and lean-burn gas engines. It is formulated from wax-free synthetic base oils and a balanced additive system to provide performance that is unattainable with conventional mineral oil-based gas engine oils. The potential benefit is an improved bottom line through improved engine and oil life, reduced maintenance costs and lower fuel costs. The unique formulation of Mobil Pegasus 1 minimises ash deposits, piston land and ring belt deposits, liner scuffing, and valve seat and valve face wear. It has outstanding resistance to oxidation and the inherently high viscosity index of the synthetic base oil components ensure a protective lubricant film at high temperatures well above the limit for mineral oil-based products. Mobil Pegasus 1 exhibits low volatility, a performance characteristic that helps reduce oil consumption and improve valve lubrication performance measurably. Its unique viscometrics and low traction coefficient reduce power losses and provide potential fuel economy benefits, particularly under variable load, speed and temperature conditions.

Features and Benefits The state-of-the art technology used in Mobil Pegasus 1 is designed to provide a high level of engine performance in a wide range of high-output gas engines. Its outstanding oxidation resistance and thermal stability provide extended service life for both the engines and the oil. In addition, the unique properties of Pegasus 1 will result in lower internal friction under cold start-up and hot running conditions resulting in reduced wear and potentially lower fuel consumption. The use of this product will result in lower maintenance costs through its extended service life capability, reduced filter costs and improved engine life.

Features

Advantages and Potential Benefits Extended drain intervals and improved engine life Balanced Synthetic Formulation Longer filter life potential Cleaner engines Reduced levels of ring land and ring groove carbon Outstanding Oxidation and Thermal Stability Improved valve guide performance Lower levels of carbon/coking deposits Excellent High and Low Temperature Effective lubrication under cold startup Performance conditions

Features

Naturally High Viscosity Index Low Volatility Exceptional Anti-wear and Anti-scuff Protection Low Traction Coefficient

Advantages and Potential Benefits Easier engine cranking at low temperatures Improved engine protection under high temperature conditions Wide temperature performance Reduced oil consumption Reduced deposit formation in critical engine areas Resists wear and scuffing of liners and pistons particularly in high BMEP engines Potential for lower fuel costs Improved engine power Easier starting

Applications     



Mobil Pegasus 1 is recommended for a wide range of gas engine models. The product is particularly suited for high speed, four-cycle turbocharged and naturally aspirated gas engines requiring a nominal 0.5% ash gas engine oil. It is an excellent lubricant for both stoichiometric and lean-burn designs It is ideally suited for cogeneration and ebullient cooled applications because of its wide temperature range capability and extended engine protection and long oil life. Mobil Pegasus 1 is fully compatible with all seals commonly used in gas engines and with mineral oils but admixture with mineral oils will lower the performance benefits that can be obtained from this outstanding lubricant May be used with gas engines using alternative energy sources for fuel gas containing up to 0.3% sulphur as hydrogen sulphide

Specifications and Approvals Mobil Pegasus 1 has the following builder approvals: MB 226.9 MAN: M 3271-1 MAN: M 3271-2 MWM GmbH TR 0199-99-2105, Lube Oils for Gas Engines WAUKESHA: COGENERATION WAUKESA: 12V / 18V 220 GL Applications VOLVO: CNG FUELED BUS ENGINES WARTSILA NSD: W25SG

Typical Properties Mobil Pegasus 1 SAE Grade SAE 15W-40 Viscosity, ASTM D 445 cSt @ 40º C 93.8 cSt @ 100º C 13.0 Viscosity Index, ASTM D 2270 137 Sulfated Ash, wt%, ASTM D 874 0.5 Total Base #, mg KOH/g, ASTM D 2896 6.5 Pour Point, ºC, ASTM D 97 -48 Flash Point, ºC, ASTM D 92 238

Health and Safety Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment. The Mobil logotype, the Pegasus design are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.

9-2012 Esso Petroleum Company limited ExxonMobil House, Ermyn Way, Leatherhead, Surrey KT22 8UX 44 (0)1372 222000 http://www.exxonmobil.com Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities. Copyright © 2001-2012 Exxon Mobil Corporation. All rights reserved.

Mobil Pegasus 610 Gas Engine Oil Product Description Mobil Pegasus 610 is a high performance 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 turbo charged 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. The Mobil Pegasus 610 is a 1.0% ash, 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 prevent corrosive 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 biomas gas applications. Mobil Pegasus 610 is formulated from high quality mineral base oils combined with an advanced technology 1.0% ash 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.

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.

Features

Advantages and Potential Benefits Controls wear and corrosion when using contaminated gas Protects valve seats and faces on four-cycle High TBN and Reserve Alkalinity engines Controls combustion chamber ash formation and improves spark plug performance Lower wear of engine components Outstanding Anti-wear and Anti-scuff Reduced scuffing of liners in highly loaded Properties gas engines Provides excellent break-in protection Cleaner engines Extended oil drain intervals Excellent Oxidation and Chemical Stability Reduced oil filter costs Excellent resistance to oxidation and nitration Reduces valve guide wear in four-cycle gas Effective Corrosion Resistance engines Protects bearings and internal components Neutralises formation of acids in the oil Protection of upper cylinder and valve train Exceptional Detergent / Dispersant Properties components Cleaner engines Longer oil filter life Extend catalytic converter life and Non-zinc and Non-Phosphorus Formulation performance

Applications     

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), landfill or biomass gases 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 Mobil Pegasus 610 has the following builder approvals: Waukesha for landfill gas applications Wartsila for Crepelle 26 dual-fuel applications GE Jenbacher for TI 1000-1109 (Class C fuel gas, Series 2 & 3) GE Jenbacher for TI 1000-0125 (Landfill, Series 2 &3) GE Jenbacher for TI 1000-1105 (Biogas, Series 2 &3)

Typical Properties Mobil Pegasus 610 SAE Grade Viscosity, ASTM D 445 cSt @ 40°C cSt @ 100°C Viscosity Index, ASTM D 2270 Sulfated Ash, wt%, ASTM D 874 TBN #, mg KOH/g, ASTM D 2896 Pour Point, °C, ASTM D 97 Flash Point, °C, ASTM D 92 Density @ 15.6ºC, kg/l, ASTM D 4052

40 131 13.3 98 1.0 10.8 -18 257 0.889

Health and Safety Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment. The Mobil logotype, the Pegasus design are trademarks of ExxonMobil Corporation, or one of its subsidiaries.

3-2011 Esso Petroleum Company limited ExxonMobil House, Ermyn Way, Leatherhead, Surrey KT22 8UX 44 (0)1372 222000 http://www.exxonmobil.com Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities. Copyright © 2001-2012 Exxon Mobil Corporation. All rights reserved.

Mobil Pegasus 705 Gas Engine Oil Product Description Mobil Pegasus 705 is a premium high performance SAE 40 gas engine oil formulated to lubricate a wide range of natural gas fuelled engines. It is recommended for the newer stoichiometric and lean burn high-speed four-cycle engines that are sensitive to valve face and seat wear. This oil is also recommended for the lubrication of the gas compressors and wide range of engines requiring low ash oil. Pegasus 705 is formulated from select high quality, mineral base oils and an advanced technology additive system engineered to provide excellent protection of engine and compressor components and reduced levels of combustion chamber deposits. It exhibits exceptional chemical stability and resistance to oxidation and nitration resulting in longer oil life and lower filter replacement costs. These performance advantages combined with outstanding detergency and dispersancy properties minimise the formation of ash and carbon deposits that could result in poor engine performance and detonation. Pegasus 705 exhibits excellent anti-corrosion properties that prevent corrosive wear in cylinders, valve areas and bearings resulting in longer engine life. Its high level of anti-wear performance reduces wear of rings, liners, and bearings. It also provides exceptional valve seat and face protection and reduces the wear and deposit formation in the critical valve guides of highly loaded turbocharged four-cycle engines.

Features and Benefits Mobil Pegasus 705 gas engine oil provides for cleaner engines, lower wear rates and improved engine performance. The product is particularly beneficial in increasing valve life and engine performance in the newer lean-burn, design high-speed four-cycle engines operating under heavy loads. The result is reduced maintenance costs and improved production capacity. The excellent chemical and oxidation stability results in longer drain periods and reduced filter costs. Pegasus 705 reduces ash and carbon formation in combustion chambers resulting in lower maintenance costs while improving engine performance and reducing fuel costs.

Features

Advantages and Potential Benefits Lower wear of engine components Reduced scuffing of liners of highly loaded Excellent Anti-wear and Anti-scuff Properties gas engines Provides excellent break-in protection Cleaner engines Extended drain intervals Reduced filter costs Exceptional Oxidation and Chemical Stability Excellent resistance to oxidation and nitration Reduces coking and formation of undercrown deposits Reduces valve seat, face and guide wear Controls combustion chamber ash formation Low Ash Formulation and improves spark plug performance Improved engine performance Lower fuel costs Reduces valve guide wear in four stroke-cycle Corrosion Resistance gas engines Protects bearings and internal components Cleaner engines Outstanding Detergency and Dispersancy Improved upper cylinder performance Properties Longer filter life Lower maintenance costs

Applications      

High-speed lean-burn and stoichiometric gas engines sensitive to valve seat recession Crankcases and power cylinders of spark-ignited two and four-stroke cycle gas engines Recommended for applications requiring low ash formulations Reciprocating natural gas compressor cylinders High output or ambient rated engines operating at or in excess of rated capacity under high temperatures Engines operating on fuel containing low levels of hydrogen sulphide

Specifications and Approvals Mobil Pegasus 705 meets or exceeds the requirements of: Caterpillar

X

Mobil Pegasus 705 has the following builder approvals: MTU Category 1 PERKINS GAS ENGINE OIL - NATURAL GAS GE JENBACHER TI 1000-1107 MWN GmBH TR 0199-99-2105/7, Lube Oils for Gas Engines WARTSILA 34SG WARTSILA 32 DF WARTSILA 28SG WARTSILA 220 SG WARTSILA NSD W25SG WARTSILA NSD W12V150SG, W12V175SG, W16V175SG MAN approval 3271-2

X X X X X X X X X X X

Typical Properties Mobil Pegasus 705 SAE Grade Viscosity, ASTM D 445 cSt @ 40º C cSt @ 100º C Viscosity Index, ASTM D 2270 Sulfated Ash, wt%, ASTM D 874 Total Base #, mg KOH/g, ASTM D 2896 Pour Point, ºC, ASTM D 97 Flash Point, ºC, ASTM D 92 Specific Gravity 15.6º C/15.6º C, ASTM D 1298

40 126.2 13.2 98 0.5 5.6 -18 252 0.887

Health and Safety Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment. The Mobil logotype, the Pegasus design and Pegasus are trademarks of ExxonMobil Corporation, or one of its subsidiaries.

3-2011

Esso Petroleum Company limited ExxonMobil House, Ermyn Way, Leatherhead, Surrey KT22 8UX 44 (0)1372 222000 http://www.exxonmobil.com Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities. Copyright © 2001-2012 Exxon Mobil Corporation. All rights reserved.

Mobil Pegasus 710 Gas Engine Oil Product Description Mobil Pegasus 710 is a premium performance gas engine oil primarily intended for the lubrication of modern high-speed four-cycle engines where oil consumption is very low. These engines are generally of the lean-burn design where increased manifold pressures prevent sufficient lubricant from getting into the valve guide areas. This oil is also recommended for the lubrication of gas compressors. It is formulated from high quality mineral base oils and an advanced medium ash additive system designed to provide excellent protection of engine and compressor components. It exhibits a high level of chemical stability and resistance to oxidation and nitration. Pegasus 710 offers outstanding resistance to valve train wear and protection against deposit formation. These performance advantages combined with its very effective detergency and dispersancy system control the formation of ash and carbon deposits that could result in poor engine performance and detonation. Its high reserve alkalinity and TBN retention also makes it suitable for engines operating on fuels that contain low amounts of corrosive materials such as hydrogen sulphide. The excellent anti-corrosion properties prevent corrosive wear in cylinders, valve areas and bearings resulting in longer engine life. Mobil Pegasus 710 anti-wear and anti-scuff performance assures minimal piston scuffing, scoring and cylinder and ring wear.

Features and Benefits Mobil Pegasus 710 Gas Engine Oil provides cleaner engines, lower wear rates and improved engine performance. The use of this product will result in reduced maintenance costs and improved production capacity. Their excellent chemical and oxidation stability results in longer drain periods and reduced filter costs. The high reserve alkalinity of this product allows its use in engines operating on fuels with low amounts of corrosive materials in the fuel gas. Features Outstanding Anti-wear and Anti-scuff Properties

High Oxidation and Chemical Stability

Innovative Medium Ash Formulation

Advantages and Potential Benefits Lower wear of engine components Reduced scuffing of liners of highly loaded gas engines Provides excellent break-in protection Cleaner engines Extended drain intervals Reduced filter costs Excellent resistance to oxidation and nitration Protects valve seats and faces on four strokecycle engines Controls combustion chamber ash formation and improves spark plug performance

Features Excellent Corrosion Resistance Exceptional Reserve Alkalinity

Advantages and Potential Benefits Reduces valve guide wear in four stroke-cycle gas engines Protects bearings and internal components Controls formation of acids in the oil Protects engine components from acidic attack

Applications     

Spark ignited four-cycle gas engines with very low oil consumption Engines experiencing valve train wear and corrosion Engines operating on fuel containing low levels of sulphur and chlorine compounds Reciprocating compressor cylinders compressing natural gas High output or ambient rated engines operating at or in excess of rated capacity under high temperatures

Specifications and Approvals Mobil Pegasus 710 has the following builder approvals: Waukesha (Cogeneration service engines)

X

Typical Properties Mobil Pegasus 710 SAE Grade Viscosity, ASTM D 445 cSt @ 40º C cSt @ 100º C Viscosity Index, ASTM D 2270 Sulfated Ash, wt%, ASTM D 874 Total Base #, mg KOH/g, ASTM D 2896 Pour Point, ºC, ASTM D 97 Flash Point, ºC, ASTM D 92 Specific Gravity 15.6º C/15.6º C, ASTM D 1298

40 121 13.2 98 1.0 6.5 -15 249 0.896

Health and Safety Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through

your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment. Toxicity Class: free Bag T No.:611500 The Mobil logotype, the Pegasus design and Pegasus are trademarks of ExxonMobil Corporation, or one of its subsidiaries.

3-2011 Esso Petroleum Company limited ExxonMobil House, Ermyn Way, Leatherhead, Surrey KT22 8UX 44 (0)1372 222000 http://www.exxonmobil.com Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities. Copyright © 2001-2012 Exxon Mobil Corporation. All rights reserved.

Mobil Pegasus 801 Gas Engine Oil Product Description Mobil Pegasus 801 is an SAE 40 premium performance gas engine oil intended for the lubrication of all classes of gas engines operating at low, medium and high speeds where low ash or ashless oils are recommended. It provides outstanding engine cleanliness and performance by preventing the formation of carbon and ash deposits on pistons, in ring belt areas, on exhaust and intake ports, on valves and valve stems and in combustion chambers. Mobil Pegasus 801 also reduces the potential for port carboning of two-cycle gas engines. It minimizes engine wear and protects valve faces, seats and guides of turbocharged, four-cycle engines. Mobil Pegasus 801 provides exceptional protection against scuffing in demanding engine applications and also provides exellent protection against corrosion of internal engine components. Filter and oil life are extended and the high performance capability of the Mobil Pegasus 801 can also extend the time between engine maintenance and overhaul periods. The Mobil Pegasus 801 is the latest generation of ashless detergent and anti-scuff gas engine oil formulated from highly refined base oils and an advanced technology additive system. It is engineered to provide a high level of chemical and thermal stability resulting in cleaner engines and higher engine performance. Pegasus 801provides exceptional cleanliness and optimum wear protection in the most severe applications, without the disadvantage of increased ash deposits.

Features and Benefits Mobil Pegasus 801 oils provide outstanding performance in both two- and four-cycle gas engines making it a good choice for all applications where ashless and low-ash oils are recommended. It's advanced additive system protects high BMEP engines against scuffing, scoring and wear particularly during critical break-in periods. The result is long engine life and low maintenance costs. Pegasus 801 has demonstrated outstanding performance over an exceptionally wide range of engines and operating conditions. Where mixed engines are in service Mobil Pegasus 801 provides a single product which simplifies inventory and reduces the potential for product misapplication.

Features Outstanding Oxidation Stability

Advanced Technology Very Low Ash Formulation

Advantages and Potential Benefits Longer engine and oil life Cleaner engines Extended filter life Lower levels of port carboning (two-cycle engines) Reduced valve and combustion chamber ash and carbon build-up

Features

Outstanding Anti-wear and Anti-scuff Protection

Exceptional Nitration Resistance

High Level Corrosion Protection

Advantages and Potential Benefits Longer spark plug life Less engine wear Increased engine life Excellent break-in protection for high BMEP engines Improved ring, piston and liner life Less engine sludging Improved filter life Reduced engine deposits Protects engine components against corrosive wear Longer engine life and lower maintenance costs

Applications 

  





Mobil Pegasus 801 is intended for the lubrication of the crankcase, power cylinders, and compressor cylinders of spark-ignited, two- and four-cycle gas engines operating on clean fuel. Ideal for engines that drive generators for power production or gas compressors in gathering, transmission, storage, and distribution of natural gas. Ebulliently cooled engines Engines in remote locations which operate virtually unattended for long periods. In many cases, the engines are operated at, or in excess of full-rated output, while other applications are intermittent or stand-by service. Reliability, is therefore essential. Mobil Pegasus 801 oils show excellent results in multipurpose natural gas engine applications, particularly involving highly turbocharged engines requiring anti-scuff protection for cylinder liners and piston skirts. When natural or petroleum gas is being compressed and is dry and free of suspended liquids or corrosive components, the compressor cylinders usually are lubricated with the same oil as the engine crankcase. Mobil Pegasus 801has been successful in this service.

Specifications and Approvals Pegasus 801 recommended for use in applications requiring: Ashless or low-ash gas engine oils Outstanding anti-scuff protection Wide range of mixed gas engine designs

Typical Properties Pegasus 801 SAE Grade Viscosity, ASTM D 445 cSt @ 40º C cSt @ 100º C Viscosity Index, ASTM D 2270 Sulfated Ash, wt%, ASTM D 874 Total Base #, mg KOH/g, ASTM D 2896 Pour Point, ºC, ASTM D 97 Flash Point, ºC, ASTM D 92 Density @15º C kg/l, ASTM D 1298

40 132 13.2 97 0.1 2.8 -15 249 0.886

Health and Safety Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment. The Mobil logotype, the Pegasus design and Delvac are trademarks of ExxonMobil Corporation, or one of its subsidiaries.

3-2011 Esso Petroleum Company limited ExxonMobil House, Ermyn Way, Leatherhead, Surrey KT22 8UX 44 (0)1372 222000 http://www.exxonmobil.com Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities. Copyright © 2001-2012 Exxon Mobil Corporation. All rights reserved.

Mobil Pegasus 805 Gas Engine Oil Product Description Mobil Pegasus 805 is premium performance gas engine oil engineered to meet the rigorous demands of today's high output four-cycle engines designed to reduce emissions and improve fuel-efficiency. These gas engines generally operate under high load and high temperature conditions. Mobil Pegasus 805 is made from the highest quality base stocks and an advanced technology additive system that provides exceptional oxidation stability, nitration resistance and thermal stability. Its detergent and dispersant system controls the formation of carbon deposits, lacquer and sludge resulting in cleaner engines, longer oil life and reduced filter costs. Mobil Pegasus 805 is also designed to provide exceptional protection against piston scuffing, scoring and ring and liner wear. It exhibits excellent resistance to foaming, good demulsibility and protection against corrosion. It is formulated with very low levels of zinc and phosphorus making it compatible with engines equipped with catalytic converters.

Features and Benefits Mobil Pegasus 805 is designed to provide optimum engine life and low maintenance costs. It meets a wide range of OEM requirements making it an excellent choice where high-speed four-cycle engines from various OEMs are used. Its unique innovative technology allows for control of valve train component wear and reduces the potential for scuffing, scoring and accelerated piston and ring wear. The end result is lower costs of operating and maintaining your gas engines. Features Exceptional Oxidation and Nitration Resistance

Outstanding Anti-wear and Anti-scuff protection

Advanced Technology Additive System

Very Effective Corrosion Protection

Advantages and Potential Benefits Cleaner engines Longer oil and filter service Improved engine performance Reduced scoring, scuffing and wear of pistons and liners High level of protection in fully loaded engines Reduced maintenance costs Excellent protection of valve train components Reduced levels of combustion chamber ash Improved spark plug life Protects internal engine components from water, coolant and acidic materials Neutralizes acids formed from combustion or oil degradation

Features Excellent Detergent / Dispersancy Performance

Advantages and Potential Benefits Protects valve train components Reduces ash and carbon deposits in combustion chambers Improves spark plug life and performance Reduces filter replacement costs

Applications      

Caterpillar, Superior, Waukesha and other turbocharged, naturally aspirated, medium to high speed four-cycle engines requiring a low ash oil Engines experiencing valve face and seat wear Lean-burn and stoichiometric four-cycle engines Engines equipped with catalytic converters Applications using alternate fuels containing low levels of sulfur or chlorine In field gathering operations where sour gas (low levels of H2S) is used as fuel

Specifications and Approvals

Mobil Pegasus 805 meets or exceeds the requirements of: CATERPILLAR

X

Mobil Pegasus 805 has the following builder approvals: MWM GmbH TR 0199-99-2105/7, Lube Oils for Gas Engines GE Jenbacher TI 1000-1105 (Biogas, Series 2 & 3) GE Jenbacher TI 1000-1106 GE Jenbacher TI 1000-0125 (Landfill, Series 2 & 3) Wartsila 34SG Wartsila 32DF Wartsila 28SG Wartsila 220 SG Waukesha (Cogeneration)

X X X X X X X X X

Typical Properties Mobil Pegasus 805 SAE Grade Viscosity, ASTM D 445 cSt @ 40º C cSt @ 100º C Viscosity Index, ASTM D 2270 Sulfated Ash, wt%, ASTM D 874 Foam Resistance, ASTM D 892 Seq I, Tendency/Stability, ml/ml Total Base #, mg KOH/g, ASTM D 2896 Pour Point, ºC, ASTM D 97 Flash Point, ºC, ASTM D 92 Specific Gravity 15.6º C/15.6º C, ASTM D 4052

40 130 13.5 99 0.5 0/0 6.2 -12 262 0.89

Health and Safety Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment. The Mobil logotype, the Pegasus design and Pegasus are trademarks of ExxonMobil Corporation, or one of its subsidiaries.

3-2011 Esso Petroleum Company limited ExxonMobil House, Ermyn Way, Leatherhead, Surrey KT22 8UX 44 (0)1372 222000 http://www.exxonmobil.com Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities. Copyright © 2001-2012 Exxon Mobil Corporation. All rights reserved.

Mobil Pegasus 1005 Premium Gas Engine Oil Product Description Mobil Pegasus 1005 is the next generation of Mobil Pegasus high performance gas engine oil. Designed to provide today’s high output, low-emission four-cycle gas engines with the highest levels of protection while maintaining superior performance in earlier model engines. Mobil Pegasus 1005 is the latest addition to the Mobil Pegasus pedigree of proven natural gas engine oils with a balanced, durable formulation. Mobil Pegasus 1005 uses high quality base stocks and advanced additive technology to deliver exceptional oxidation stability, nitration resistance and thermal stability. Mobil Pegasus 1005 formulation is balanced to provide outstanding anti-wear characteristics to protect heavily loaded valve train components, pistons, liners, bearings, and gear trains while maintaining compatibility with catalytic converter materials. Its detergent-dispersant system controls the formation of carbon and varnish deposits to minimize oil consumption and maintain engine cleanliness even during extended drain intervals. Mobil Pegasus 1005 can help users keep their engines running longer and cleaner with improved reliability resulting in and increase in productivity.

Features and Benefits Mobil Pegasus 1005 is a leading member of the Mobil brand of industrial lubricants that enjoy a reputation for innovation, technology leadership and high performance capability. Mobil Pegasus 1005 offers the following features and potential benefits: Features

Extended Oil Life

Keep Clean Performance

Low Oil Consumption

Advantages and Potential Benefits Improves oil drain interval; reduces number of oil changes, fewer oil purchases, creates less waste oil and labor to help lower operating costs and increase engine availability Increased engine availability enables higher productivity Helps control deposits in combustion chamber and pistons to maximize engine efficiency and reliability Helps control deposits in heat exchangers to maximize heat production Low oil volatility helps minimize engine and exhaust system deposits to help extend catalytic converter life and extend intervals between heat exchanger cleanings Helps reduce make up oil additions and lubricant

Features

Exceptional Wear Protection

Advantages and Potential Benefits purchases Helps control wear on critical engine components Maximizes engine reliability and performance

Applications Mobil Pegasus 1005 is designed for use in: 

    

Caterpillar, MWM GmBh (Formerly Deutz Power Systems), Jenbacher, Rolls RoyceBergen, Wartsila, Waukesha and other turbocharged, naturally aspirated, medium to high speed four-cycle engines requiring a low ash oil Lean-burn and stoichiometric four-cycle engines operating under high load, high temperature conditions High-speed four-cycle gas engines used in cogeneration applications Natural gas fueled engines equipped with catalytic converters Applications using alternate fuels containing low levels of sulfur or chlorine Field gathering operations where sour gas H2S content is ‹ 0.1% (1000 ppm) may be used as fuel

Specifications and Approvals Mobil Pegasus 1005 meets or exceeds the requirements of: API CF Caterpillar

Mobil Pegasus 1005 has the following builder approvals: Avtodizel-YaMz (Russia) – All Engines GE Jenbacher TI 1000-1109 (Class A fuel gas, Series 2 & 3 extended drain) GE Jenbacher TI 1000-1109 (Class A fuel gas, Series 4 & 6) MAN M 3712-2 (Natural Gas) MAK, GCM34 MWM GmbH TR 0199-99-2105, Lube Oil for Gas Engine MTU Onsite Energy, Series 400 Engines/ naturally aspirated – Natural Gas Perkins, Gas Engine Oil – Natural Gas Rolls-Royce Bergen Engines K-G1 / K-G2 / K-G3 / CR-G / BV-G Schnell Motoren, AG ZS180-V5 / ZS250-V5 / ZS265GT-V5 / ZS265TC-V5 Wartsila 220SG / 28SG / 34SG / 32DF(continuous natural gas operation) / 50DF (continuous natural gas operation) / 25SG / 175SG Waukesha, Cogeneration

X X

X X X X X X X X X X X X

Typical Properties Mobil Pegasus 1005 SAE Grade Viscosity, ASTM D 445 mm²/s @ 40ºC mm²/s @ 100ºC Viscosity Index, ASTM D 2270 TBN, mg KOH/g Pour Point, ºC, ASTM D 97 Flash Point, ºC, ASTM D 92 Density @15.6 ºC, ASTM D 4052, kg/l Sulfated Ash, wt% ASTM D 874

1005 40 125 13 100 5 -15 247 0.85 0.5

Health and Safety Based on available information, this product is not expected to produce adverse effects on health when used for the intended application, following the recommendations provided in the Material Safety Data Sheet (MSDS). MSDSs are available upon request through your sales contract office, or via the Internet on http://www.exxonmobil.com. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment. The ExxonMobil logo and Pegasus are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.

11-2011 Esso Petroleum Company limited ExxonMobil House, Ermyn Way, Leatherhead, Surrey KT22 8UX 44 (0)1372 222000 http://www.exxonmobil.com Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification. Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations. The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit www.exxonmobil.com ExxonMobil is comprised of numerous affiliates and subsidiaries, many with names that include Esso, Mobil, or ExxonMobil. Nothing in this document is intended to override or supersede the corporate separateness of local entities. Responsibility for local action and accountability remains with the local ExxonMobil-affiliate entities. Copyright © 2001-2012 Exxon Mobil Corporation. All rights reserved.