PSO DEO 3000 (SAE-50)-4LPSO DEO 3000 (SAE 50) 4L is a reliable heavy duty engine oil formulated to provide strong lubrication and protection for older petrol and diesel engines operating under high temperature and heavy load conditions. It meets the API CF performance classification, helping control wear, reduce deposits, and support stable engine operation. Designed for durability and dependable performance, this oil enhances engine life and reliability in rugged driving