20W-50 multi-grade designed for all types of heavy-duty diesel motors (long-distance trucks, buses, etc.), off-road machinery (construction, mining, agricultural) and special equipment from European, American, and Asian manufacturers that meet the requirements of Euro I, II, III, IV where a performance level of CH-4 or lower is required. Highly recommend-ed for heavy-duty tracked vehicles. Can be used in gasoline engines where API SL or lower performance is requirea.