HP Natural Gas Engine Oil M 40 is a premium mid-ash natural gas engine oil specially formulated to deliver superior protection and performance in stationary gas engines operating on sour gas. These engines often face acidic combustion environments that demand a lubricant with a higher Total Base Number (TBN) for effective neutralization of corrosive acids. HP Natural Gas Engine Oil M 40 meets this challenge through a robust additive system designed to protect vital engine parts from wear, oxidation, and acid corrosion, ensuring reliable and extended operation under harsh conditions. This oil is developed using high-quality base stocks blended with carefully balanced detergents and dispersants to offer excellent thermal stability and deposit control. It prevents piston deposits, valve recession, and ring sticking even in engines running at elevated temperatures. The oil’s mid-ash formulation provides the ideal balance between detergent performance and exhaust system cleanliness—minimizing ash accumulation while still providing strong acid neutralization capability for engines burning low to moderately sour gas fuels. HP Natural Gas Engine Oil M 40 is widely recommended for stationary DG sets operating on landfill or biogas (sour gas) where the fuel contains higher sulphur or corrosive impurities. It is also highly suitable for lean-burn Waukesha and similar engines that require mid-ash oil with enhanced deposit control and wear protection. Its advanced oxidation and nitration resistance ensure longer oil drain intervals, cleaner combustion chambers, and smoother operation across extended maintenance cycles. The superior anti-wear characteristics of HP Natural Gas Engine Oil M 40 help safeguard cylinder liners, pistons, and valve seats from abrasive and corrosive wear. Its strong base retention capability ensures continued acid neutralization over long operating hours, while the oil’s thermal stability prevents thickening and sludge formation. This results in lower maintenance costs, reduced downtime, and improved overall engine efficiency. Formulated to deliver excellent control over oxidation, nitration, and deposits, HP Natural Gas Engine Oil M 40 ensures consistent performance even in continuous heavy-duty operations. It meets API CF specifications, guaranteeing reliability and protection across a wide range of stationary gas engines used in power generation, industrial, and municipal applications. By combining high TBN chemistry with mid-ash content, HP Natural Gas Engine Oil M 40 offers dependable lubrication for sour gas conditions while maintaining superior engine cleanliness, longer service intervals, and lower total operating costs.
| Properties | HP Natural Gas Engine Oil M 40 |
|---|---|
| Kinematic Viscosity @ 100°C, cSt | 15 |
| Viscosity Index | 100 |
| Flash Point, COC, °C | 215 |
| Pour Point, °C | -12 |
| Sulphated Ash, % wt | 0.8 |
