GLOBOiL DZL ULTRA 15W-40 20L is a premium diesel engine oil in a 20-liter packaging, designed to provide exceptional protection and performance for heavy-duty diesel engines. With a 15W-40 viscosity, it ensures smooth operation in both high and low temperatures, offering superior wear protection, enhanced oxidation stability, and improved fuel efficiency. Ideal for trucks, buses, and industrial equipment, it helps extend engine life, reduce maintenance costs, and improve overall engine performance under demanding conditions.