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	Advantages and Potential Benefits
Outstanding Anti-wear and Anti-scuff Properties	Lower wear of engine components Reduced scuffing of liners of highly loaded gas engines Provides excellent break-in protection
High Oxidation and Chemical Stability	Cleaner engines Extended drain intervals Reduced filter costs Excellent resistance to oxidation and nitration
Innovative Medium Ash Formulation	Protects valve seats and faces on four stroke-cycle engines Controls combustion chamber ash formation and improves spark plug performance
Excellent Corrosion Resistance	Reduces valve guide wear in four stroke-cycle gas engines Protects bearings and internal components
Exceptional Reserve Alkalinity	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	40
Viscosity, ASTM D 445
cSt @ 40º C	121
cSt @ 100º C	13.2
Viscosity Index, ASTM D 2270	98
Sulfated Ash, wt%, ASTM D 874	1.0
Total Base #, mg KOH/g, ASTM D 2896	6.5
Pour Point, ºC, ASTM D 97	-15
Flash Point, ºC, ASTM D 92	249
Specific Gravity 15.6º C/15.6º C, ASTM D 1298	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

Exxon Mobil Corporation
3225 Gallows Road
Fairfax, VA 22037

1-800-ASK MOBIL (275-6624)

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.