PSO DEO 6000 (20W-50)-210L is a durable heavy-duty engine oil engineered to provide reliable lubrication and protection for older diesel and gasoline engines operating under tough conditions. It meets the API CF-4 performance category, offering excellent wear resistance, thermal stability, and deposit control for extended engine life. Designed for heavy-load and high-temperature environments, this oil helps maintain strong oil film strength and dependable performance on the road.