Mobil SHC Pegasus™ 30

Mobil industrial , Canada

Synthetic Gas Engine Oil
Energy Efficiency logo

Product Description

Mobil SHC Pegasus™ 30 is a new category of advanced technology natural gas engine oil designed to provide today's high output, low-emission four-cycle gas engines with the highest levels of protection. Mobil SHC Pegasus 30 uses a patented combination of high quality base stocks and advanced additive technology to deliver exceptional oxidation stability, nitration resistance and thermal stability. Its formulation has been carefully balanced to provide outstanding anti-wear characteristics and to control the formation of carbon and varnish deposits.


*Energy efficiency explained

The energy efficiency design is a trademark of Exxon Mobil Corporation. The fuel efficiency of Mobil SHC Pegasus 30 relates solely to the fluid performance when compared to ExxonMobil's standard SAE 40 natural gas engine oils. The technology used in Mobil SHC Pegasus 30 demonstrated up to a 1.5% increase in fuel efficiency when tested in standard natural gas engine applications under controlled conditions.  The energy efficiency claim for this product is based on test performed in accordance with all applicable industry standards and protocols. Efficiency improvements will vary based on operating conditions.


Features and Benefits


Advantages and Potential Benefits

Outstanding anti-wear characteristics

Help to protect heavily loaded valve train components, pistons, liners, bearings, and gear trains

Excellent detergent-dispersant system

Controls the formation of carbon and varnish deposits to minimize oil consumption and maintain engine cleanliness even during extend drain intervals

Exceptional oxidation stability, nitration resistance and thermal stability

Provides the opportunity to extend drain intervals by four to eight times that of conventional gas engine oils

Low volatility

Reduces oil consumption and reduces deposit formation



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 fuelled engines equipped with catalytic converters

Gas engines operating on fuel that contains low levels of H2S


Specifications and Approvals

This product has the following approvals:

INNIO Waukesha Engine APG 1000 Applications Using Commercial Quality Natural Gas


Properties and Specifications




SAE 30

Density @ 15.6 C, g/cm3, ASTM D4052


Ash, Sulfated, mass%, ASTM D874


Flash Point, Cleveland Open Cup, °C, ASTM D92


Total Base Number, mgKOH/g, ASTM D2896


Viscosity Index, ASTM D2270


Kinematic Viscosity @ 100 C, mm2/s, ASTM D445


Pour Point, °C, ASTM D97


Kinematic Viscosity @ 40 C, mm2/s, ASTM D445



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.


Imperial Oil

Petroleum and Chemicals Division
Lubricants and Specialties
240 Fourth Ave SW
C. P. 2480, Station M
Calgary AB T2P 3 M 9


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
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.