Engineer working on gas engine

Shell Mysella Stationary Gas Engine Oils

Model of a stationary gas engine

Shell Mysella

Gas engine oils for more productive, sustainable operations

As more, and cleaner, energy is needed to meet the rising energy demands of a growing population, stationary gas engines are increasingly being turned to for reliable power generation.

But if stationary gas engines are set to play such an important role in today’s energy mix, they must be expertly maintained. Central to this is the proper use of effective stationary gas engine oils, in light of challenges caused by higher power density engines, reduced sump capacity and lower oil consumption.

In doing so, Shell Mysella helps futureproof your gas engines even in the most demanding of operating environments, for a more productive, efficient operation.

Key Benefits ₁

  • Icon of an Oil cannister pouring oil on gear

    Extended oil life

    As manufacturers push the boundaries of gas-engine design, in-service oils are forced to deliver longer oil-drain intervals (ODI). Which is why Shell Mysella engine oils have been formulated to reliably navigate low-oil consumption and high-temperature environments with Shell Mysella S7 N Ultra able to provide up to 4,000 hours ODI2.

  • Icon of an screwdriver and spanner

    Enhanced protection

    Growing energy demands mean gas engines are exposed to increasingly severe conditions. To protect against high temperatures and pressures, Shell Mysella oils deliver superior deposit control – keeping your ring belts, pistons and cylinder liners less susceptible to wear.

  • Gear

    Reliable operations

    Amid extreme environments, downtime becomes a more realistic outcome. Fortunately, the ongoing protection provided by Shell Mysella reduces the likelihood of unexpected maintenance or part replacement, providing a reliable operation by sustaining planned maintenance intervals.

  • Icon of a Corrosion

    Improved performance in sour gas application

    Since engines fuelled by sour gases can rapidly reduce the oil life of more traditional gas engine lubricants, Shell Mysella provides superior acid neutralisation – reducing the corrosion of engine components and lowering sludge formation.

Gas engines

Why stationary gas engines are on the rise

The growing demand for cleaner energy, the need for reliable supply, and a shift toward decentralised power generation have combined to create perfect conditions for stationary gas engines to rise in prominence. Due to their flexibility and strong performance characteristics, gas engines are increasingly being used as part of:

  • Peaking power plants – As providers of electric power to the grid, these plants rely on stability and flexibility whether they are ramping up or winding down, making gas engines a perfect solution.
  • District heating – As a more reliable and responsive alternative to gas turbines or coal, stationary gas engines are more frequently integrated into combined heat and power (CHP) plants.
  • Commercial buildings – With greater energy needs, and a demand for the supply to be as reliable as possible, commercial units see gas engines as a good fit for their operational needs.
Engineer working on engine

Mysella S7 N Ultra: Powering next-generation stationary gas engines2

As engine technology and designs have evolved to meet changing power demands, so have the gas-engine oils that keep them operating as efficiently as possible.

Suitable for highly-rated, 4-stroke, spark-ignition engines – especially those with steel pistons – Shell Mysella S7 N Ultra embodies these lubricant developments, providing power sector operators with:

  • 4,000 hours ODI – Up to double the current industry performance for oil life.
  • Excellent deposit handling – Contributing to trouble-free piston running, having been proven over 45,000+ hours of field test trials in more than 10 Jenbacher Type 6 engines.
  • 24+ bar brake mean effective pressure (BMEP) – Extends ODI for the 24 bar BMEP market, with the capacity to support future engines that have an even higher BMEP.

More on Mysella S7 N Ultra

  • SLS Mysella Product Sheet

    Download product sheet

    Take a deep dive into the advanced technology platform that Mysella S7 N Ultra is built on, and learn what it means for your engine’s performance.

    Download Mysella S7 N Ultra Product Sheet

  • SLS Mysella Infographic

    Download infographic

    See Shell Mysella S7 N Ultra’s key facts and figures, all in one place – from the qualities that help it protect components to how much it can extend your oil life by.

    Download Mysella S7 N Ultra Infographic

Shell Mysella whitepaper

A growing sector. Evolving environments. Our whitepaper lays out the external factors that are changing how the power industry operates, before outlining why Shell Mysella might be the most important choice you make for your stationary gas engines.

Download white paper

Shell lubricants for gas engines

Whether you work with natural gas or sour gas, explore our entire portfolio of lubricants for stationary gas engines. And once you’ve selected your Shell Mysella oil, see how oil condition monitoring service Shell LubeAnalyst could take your operations to the next level.

Learn more

Real-world case studies

  • Shell Mysella S5 S 40 case study

    Shell Mysella S5 S 40 case study

    As well as increasing ODI by 150%, Shell Mysella S5 S 40 helped this power company streamline its maintenance scheduling, reduce oil consumption, and boost uptime. Find out how.

    Download case study

  • Shell Mysella S3 N 40 case study

    Shell Mysella S3 N 40 case study

    By integrating Shell Mysella S3 N 40, this energy company was able to increase its de-coking intervals by 66%. Discover how much the switch saved them in annual costs.

    Download case study


1 For more information around performance characteristics, test results and technical claims, please consult our Shell Mysella product brochure, here

2 Shell Mysella S7 N Ultra can provide up to 4,000 hours ODI, excellent handling and 24+ bar brake mean effective pressure (BMEP). Taken from the Shell Mysella S7 N Ultra, Powering next generation stationary gas engines product brochure.

All data us derived from tests in laboratories of Shell Lubricant Solutions or partners using accepted standard methods.

For more product specific information, please visit for more details.

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