Mobil Pegasus™ 805 helps double the life of five Caterpillar 3500 series lean burn engines, saving US $585,000

Mobil Pegasus 805 helps extend engine life

Caterpillar 3512 and 3516 Lean Burn Engines XTO Energy, Inc.

Ringwood, Oklahoma, United States


XTO Energy is operating two Caterpillar 3512 and three Caterpillar 3516 engines at its Ringwood, Oklahoma facility. XTO’s maintenance team wanted to extend the time between the OEM-recommended overhaul intervals of 40,000 to 60,000 hours.


ExxonMobil engineers recommended that XTO utilize Mobil Pegasus™ 805 gas engine oil in its five Caterpillar™ engines, as well as monitor the condition of the in-service lubricant and engine components through use of Mobil Serv℠ Lubricant Analysis.


Use of Mobil Pegasus™ 805 oil, supported with Mobil Serv℠ Lubricant Analysis, helped XTO achieve an average of more than 118,000 in-service hours on each of its five engines, safely doubling the engines’ overhaul intervals recommended by the OEM.

Mobil Pegasus™ 805 helps extend engine lifeIn addition to the extended oil service life, it is also significant that the engines’ crankshafts, camshafts, rocker shafts, cam followers and rocker bushings required only polishing prior to going back into service. These components typically experience high wear during operation and require grinding before being put back into service. However, no grinding was needed. Additionally, the engines’ auxiliary gears were able to be reused.

Collectively, the extended engine life and minimized maintenance costs helped XTO save US $585,000 in total engine overhaul costs.

The product performance of Mobil Pegasus™ 805, alongside the application expertise provided by local ExxonMobil engineering support, once again helped to improve customer productivity.

*This success story 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.

Format :
245 kb PDF in English
Posted :
Category :
Success stories
  • Natural gas compressor

    Mobil Pegasus™ 805 helps extend compressor life, saving more than US $41,000

    Devon Gas Services uses Mobil Pegasus™ 805 to extend compressor life and improve productivity.