PSO DEO 6000 (20W-50)-210LPSO 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