
The Importance Of Monitoring Lubricant Metal Levels In Stationary Natural Gas Engine Oil Applications
Stationary Natural Gas Engine Oils (NGEOs) are generally categorized by their levels of sulfated ash. Sulfated ash is the residue left behind after the oil is burned and consists of the metallic based additives in the oil. For NGEOs, this ash comes from calcium and magnesium-based detergents as well as zinc and phosphorus based anti-wear additives.




