Gas engine Mobil Pegasus sellsheet

Mobil Pegasus™ 1005

Premium Gas Engine Oil

  • Safety Data Sheets (SDS)
  • Product Data Sheets (PDS)

Our Mobil Pegasus™ 1005 premium natural gas engine oil is designed to provide outstanding protection for today’s high-output, low-emissions, four-cycle gas engines. It is formulated to deliver exceptional oxidation stability, nitration resistance and thermal stability.

In addition to protecting heavily loaded valve train components, pistons, liners, bearings and gear trains, Mobil Pegasus 1005 natural gas engine oil also helps:

  • Control wear on critical engine components
  • Reduce oil consumption and need for top-ups
  • Maintain engine cleanliness
  • Improve drain intervals

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Data sheets

Product Data Sheets (PDS)
Safety Data Sheets (SDS)

Technical resources

Differential pressure increase after an oil conversion

Learn a potential reason for a filter differential pressure increase after converting to Mobil Pegasus™ 1005 gas engine oil.

Expert answers, Article

Used oil analysis for natural gas engines

Used oil analysis is an important tool for reducing your operating and maintenance costs.

Technical topics, PDF

Nitration in natural gas engines

Identifying, preventing and correcting nitration can help you avoid increased oil consumption, shortened filter life, and premature formation of varnish and sludge.

Technical topics, PDF

Optimizing gas engine oil drain intervals

Adjusting oil drain intervals for gas engines is one way to increase efficiency and reduce costs.

Technical topics, PDF

Mobil Pegasus™ 1005 helps Argentinian oil and gas producer enhance equipment reliability*

One oil and gas producer saves $350,000/year after switching to Mobil Pegasus™ 1005 natural gas engine oil. Find out more.

Success stories, PDF

Mobil Pegasus™ 1005 helps U.S. exploration and production company double oil drain intervals*

An exploration and production company saves more than $85,000 by doubling oil drain intervals after switching to Mobil Pegasus™ 1005 gas engine oil. Find out more.

Success stories, PDF

Mobil Pegasus™ 1005 helps an Argentinian oil and gas company triple oil drains intervals, generating annual savings of US $190,000

Mobil Pegasus™ 1005 helps an oil and natural gas exploration company generate annual savings by extending oil drain intervals.

Small things can make a difference, PDF

Mobil Pegasus™ 1005 helps an Argentinian oil and gas company triple oil drains intervals, generating annual savings of US $190,000

Mobil Pegasus™ 1005 helps an oil and natural gas exploration company generate annual savings by extending oil drain intervals.

Success stories, PDF

Mobil Pegasus™ 1005 helps gas compression plant double oil drain intervals in fleet of CAT 3612 engines, generating an annual savings of more than US $53,000

Mobil Pegasus™ 1005 helps gas compression plant double oil drain intervals in fleet of CAT 3612 engines, generating significant annual savings.

Success stories, PDF

Mobil Pegasus™ 1005 helps GS Cadila Healthcare Limited save US$ 5,420 annually

GS Cadila Healthcare Limited uses Mobil Pegasus™ 1005 gas engine oil to improve productivity by extending oil drain intervals of GE Jenbacher gas engines.

Success stories, PDF

All Mobil Pegasus 1005 resources

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 Advantages and Potential Benefits
Extended Oil Life Improves oil drain interval; reduces number of oil changes and oil purchases, creates less waste oil and labor to help lower operating costs and increase engine availability
Increased engine availability enables higher productivity
Keep Clean Performance Helps control deposits in combustion chamber and on pistons to maximize engine efficiency and reliability
Helps control deposits in heat exchangers to maximize heat production
Low Oil Consumption 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 purchases
Exceptional Wear Protection 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 Royce-Bergen, 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, with H2S content ‹ 0.1% (1000 ppm), may be used as fuel

 

Specifications and Approvals

Mobil Pegasus 1005 meets or exceeds the requirements of:  
API CF X
Caterpillar X

 

Mobil Pegasus 1005 has the following builder approvals:  
Avtodizel-YaMz (Russia) – All Engines X
GE Jenbacher TI 1000-1109 (Class A fuel gas, Series 4B & 6E) X
MAN M 3271-2 (Natural Gas) X
MAK, GCM34 X
MWM GmbH TR 0199-99-2105, Lube Oil for Gas Engine X
MTU Onsite Energy, Series 400 Engines/ naturally aspirated – Natural Gas X
Perkins, Gas Engine Oil – Natural Gas X
Rolls-Royce Bergen Engines K-G1 / K-G2 / K-G3 / CR-G / BV-G X
Schnell Motoren, AG ZS180-V5 / ZS250-V5 / ZS265GT-V5 / ZS265TC-V5 X
Wartsila 220SG / 28SG / 34SG / 32DF(continuous natural gas operation) / 50DF (continuous natural gas operation) / 25SG / 175SG X
Waukesha, Cogeneration X
Waukesha 12V/18V 220 GL Applications X

 

Typical Properties

Mobil Pegasus 1005 1005
SAE Grade 40
Viscosity, ASTM D 445  
mm²/s @ 40ºC 121
mm²/s @ 100ºC 13.4
Viscosity Index, ASTM D 2270 106
TBN, mg KOH/g 5.3
Pour Point, ºC, ASTM D 97 -25
Flash Point, ºC, ASTM D 92 265
Density @15.6 ºC, ASTM D 4052, kg/l 0.85
Sulfated Ash, wt% ASTM D 874 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.

  • Extended life
  • Thermal stability
  • Oxidation resistance
  • Water resistance
  • Enhanced wear protection
  • Keep clean
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