Ursa Super Plus EC SAE 15W-40 is a heavy duty engine oil recommended for four-stroke diesel and gasoline engines in which API CK-4 or API SN service category and SAE 15W-40 viscosity grades are recommended. It is formulated for engines operating under severe service and a wide range of climatic conditions. Ursa Super Plus EC SAE 15W-40 is a cost effective fleet heavy duty engine oil formulated to provide appropriate protection in normal operating conditions. It is designed to be a cost effective formulation for multiple types of applications