Mobil Pegasus™ 805 gas engine oil helps reduce downtime and increase productivity*

Achieved oil drain interval of

1,500 hours

Mobil Pegasus™ 805 gas engine oil success story


An oil company installed a Waukesha L7042 and two Waukesha 5790 GSI Series gas engines for gas compression and injection. These heavy-duty gas engines operate continuously, 24/7, in a very difficult environment. The oil company wanted to optimize their lubricant consumption by increasing oil drain intervals, thereby decreasing downtime and increasing productivity.


ExxonMobil engineers offered Mobil Pegasus™ 805 gas engine oil, which is also approved by Waukesha, to replace the competitive gas engine oil. Mobil Pegasus™ 805 oil provides exceptional oxidation and nitration stability, corrosion protection and thermal stability.


Following the changeover, Mobil ServSM Lubricant Analysis results documented the following benefits with the Mobil Pegasus™ 805 oil:

  • Extended oil drain intervals from 750 to 1,500 hours*
  • Kept cylinder heads clean
  • Maintained valve seats clean with proper clearance
  • Reduction in filter consumption
  • Reduction in downtime and increase in productivity
  • Average annual savings per engine totals US $41,519:
    - Oil savings: US $1,226
    - Filter savings: US $1,693
    - Productivity savings: US $38,598

*This proof of performance is based on the experience of a single customer. Actual results can vary depending upon the type of equipment used and its maintenance, operating conditions and environment, and any prior lubricant used.

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