Opet Fullmono Automotive Lubricant Heavy Duty Engine Oil, Xh 50 is a synthetic blend motor oil that provides superior engine protection and performance in all types of vehicles. It is formulated with advanced additives and synthetic basestocks that work together to protect engines from wear and deposits. It is designed to meet the most demanding requirements of modern diesel and gasoline engines, including those equipped with turbochargers and catalytic converters. It is suitable for use in both gasoline and diesel engines, and is formulated to provide superior protection against engine wear, deposit formation, and oil breakdown.