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Gas engines

Long-lasting Mobil Pegasus™ oils help keep gas engines at peak production.

For over half a century, Mobil Pegasus natural gas engine oils have been helping minimize maintenance downtime and boost productivity through long drain intervals, keep-clean performance and outstanding wear protection. 

Gas engine hub: Access customer testimonials, success stories and top tips to help optimise the performance of your gas engine.

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Performance recommendations: Keep your equipment running best by choosing the lubricant recommended for specific operating conditions.

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Lubricants for Natural Gas Engines

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Technical resources

Oil analysis result interpretation

Learn how to interpret your oil analysis results and find out what your next steps should be after receiving your used oil analysis reports.

Industrial application expertise, Article

Mobil Pegasus™ 610 and Mobil Engineering Services help Charoen Pokphand Food PCL. Save over US$ 52,000 annually

Mobil Serv℠ Lubricant Analysis helped one customer reduce unscheduled downtime and cut costs to save $52,780 per year.

Success stories, PDF

Mobil Planned Engineering Services saves more than US $30,000 through proactive maintenance at a Colombian crude oil pumping facility

Mobil Planned Engineering Service generates significant savings through proactive engine maintenance at a Colombian crude oil pumping facility.

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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

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Additional gas engine applications

  • Man on Tablet using gears calculator

    Is your gas engine oil saving you money?

    Use our calculator tool to estimate how much you can save by switching to Mobil SHC™ gear lubricants.

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Key Mobil Pegasus products

  • Gas engine Mobil Pegasus sellsheet

    Mobil SHC Pegasus™ Series

    Proven to increase energy efficiency up to 1.5 percent*, Mobil SHC Pegasus Series synthetic oils can help reduce CO2 emissions.

    • Demonstrated 47% reduction in oil consumption without increasing wear rates
    • Proven to provide four to eight times longer drain intervals than conventional oils 

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  • engineer next to equipment

    Mobil Pegasus™ 1005 oil

    This premium oil has demonstrated three times longer drain intervals than conventional gas engine oil. It’s formulated to help:

    • Enhance oxidation resistance and additive retention
    • Maximize engine reliability; minimize deposits and wear


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  • Natural gas compressor lubrication guidelines

    Mobil Pegasus™ 805 Ultra oil

    Through a uniquely balanced formulation, Mobil Pegasus 805 Ultra oil can achieve approximately double the drain intervals compared to leading conventional oils. It offers:

    • Exceptional oxidation stability and viscosity control
    • Limits deposits and maximizes engine life 

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  • Natural gas compressor

    Natural gas engines

    The right industrial lubricants can improve natural gas engine reliability and performance. Learn how Mobil™ industrial lubricants are helping the natural gas engine industry achieve higher levels of productivity.

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* The energy efficiency of Mobil SHC Pegasus™ oil 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 oil demonstrated up to a 1.5 percent increase in fuel efficiency, as measured by fuel consumed in operation, compared to Mobil Pegasus™ 1005 and 805 series when tested in standard natural gas engine applications under controlled conditions. Efficiency improvements will vary based on operating conditions and applications. The energy efficiency claim for this product is based on test results on the use of the fluid conducted in accordance with all applicable industry standards and protocols.