SHEMO DIESEL SMDPS HDEO PART SYNTHETIC CI-4/SL 20W50 is a extra high performance diesel engine oil that provides excellent lubricantion of today's diesel trucks and off highway diesel equipment as well as in passenger cars and light truck with either diesel or gasoline engine. It is additive system ensures excellent control over wear due to friction, soot induces waer, high temperature deposits, corrosion, foaming and oxidation stability. It is high recommended for extra protection in extended drain and severe usage.