Mobil Pegasus^TM 605 is a high-performance natural gas engine oil, mainly used for the lubrication of modern medium and high-speed four-stroke engines whose fuel contains corrosive components such as hydrogen sulfide or halogen (chlorine, fluorine, etc.). Mobil Pegasus 605's unique test maintenance properties reduce the adverse effects of corrosive combustion products on the upper cylinder.

Mobil Pegasus 605 is recommended by the following manufacturers: Waukesha - Biogas Applications MTU Onsite Energy Series 400 Gas Engines MWM GmbH TR 0199-99-2105 - Gas Engine Oil.