Mobil Pegasus 710
Mobil Pegasus 710 is a premium performance gas engine oil primarily intended for the lubrication of modern high-speed four-cycle engines where oil consumption is very low. These engines are typically lean-burn designs where increased manifold pressures limit lubricant reaching valve guide areas. Mobil Pegasus 710 is also recommended for gas compressor lubrication and is formulated from high quality mineral base oils combined with an advanced medium ash additive system to provide excellent protection for engine and compressor components.
Mobil Pegasus 710 delivers a high level of chemical stability with strong resistance to oxidation and nitration. These properties help maintain cleaner engines, reduce deposit formation and support longer oil service life. The formulation also provides effective detergency and dispersancy performance to control ash and carbon deposits that could otherwise lead to poor engine performance and detonation.
One of the key advantages of Mobil Pegasus 710 is its strong anti-wear and anti-scuff protection. The oil helps minimise piston scuffing, scoring and cylinder and ring wear in highly loaded gas engines. It also offers excellent protection against valve train wear, helping extend component life and maintain engine reliability under demanding operating conditions.
Mobil Pegasus 710 also provides excellent corrosion resistance and reserve alkalinity. These characteristics help control acid formation and protect cylinders, valve areas and bearings from corrosive wear. The medium ash formulation protects valve seats and faces while controlling combustion chamber deposits and improving spark plug performance.
Mobil Pegasus 710 is recommended for spark-ignited four-cycle gas engines with very low oil consumption, engines experiencing valve train wear or corrosion and applications operating on fuel containing low levels of sulphur or chlorine compounds. It is also suitable for reciprocating compressors handling natural gas and high output engines operating at elevated temperatures and loads.
Physical characteristics include a kinematic viscosity of approximately 121 mm²/s at 40°C and 13.2 mm²/s at 100°C, with a viscosity index of around 98. Mobil Pegasus 710 has a density of approximately 0.896 kg/l at 15°C, a flash point of approximately 249°C, a pour point of approximately −15°C, sulphated ash of 1.0% and a base number of approximately 6.8 mg KOH/g, supporting reliable performance in gas engine applications.
