TECHNOL POWER 20W-50 has been formulated with highly refined mineral oil and high quality additives for turbocharged or naturally aspirated diesel engines of heavy-duty trucks. This engine oil provides outstanding resistance to oxidation and corrosion, contains detergents and dispersants that keep the engine clean and possesses antirust, antiwear, and antifoaming properties. Its high viscosity index and thermal stability ensure proper lubrication of moving components of the engine under most severe operating conditions