KINZO 10W30 SM/CF4 engine oil is a premium quality product that is suitable for both gasoline, gasohol and diesel powered engines. It contains highly effective dispersant inhibitor that controls sludge and other contaminants generated during common urban stop-and-go or short trip driving conditions. Only highly stable Viscosity Index Improver is used in the formulation of this engine oil to provide consistent viscosity at high temperature, as it has the benefit of high shear stability.