Mobil Delvac 1 ESP 5W-40 is a fully synthetic, supreme performance, heavy-duty, diesel engine oil that helps extend engine life while providing long drain capability, exceptional low-temperature performance and potential 1% fuel economy benefit as compared to 15W-40 for modern diesel engines operating in severe applications.*

Features and Benefits:

• One engine oil for mixed fleet operations
• Reduced low-temperature sludge build-up and high-temperature deposits
• Reduced engine scuffing and bore polishing
• Wear protection and low oil consumption
• Maintains viscosity in severe, high-temperature service
• Improved fuel economy
• Low oil consumption
• Easy engine start-up and reduced wear
• Deposit control and extended drain capability
• Extended life of critical wear surfaces
• Increased operating efficiency and lower overall cost
• Long gasket and seal life, extended service intervals

* Actual savings are dependent upon vehicle/engine type, outside temperature, driving conditions and your current engine oil viscosity.