Extend the life of your diesel engine with Mobil™ Diesel Products
The power of Mobil Diesel Products
The History of Mobil Delvac™
For more than 90 years, Mobil Delvac™ diesel engine oil has continued to evolve through groundbreaking innovation. Discover the milestones that have kept the wheels of progress turning.
Tough Protection for Hard-working Trucks
Learn why Mobil 1™ Turbo Diesel Truck is a dependable choice for the modern engine.
What is Mobil Delvac™ 1300 Super 15W-40 engine oil?
Mobil Delvac™ 1300 Super 15W-40 is an advanced diesel engine oil that helps extend engine life, allowing you to run your business with confidence. Mobil Delvac™ 1300 Super 15W-40 delivers outstanding performance in both newer and older heavy-duty engines and meets or exceeds the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, and CH-4 as well as key OEM requirements.
Is Mobil Delvac™ 1300 Super a synthetic engine oil?
No, Mobil Delvac™ 1300 Super is a premium conventional engine oil that provides better wear protection than some of our competitors’ synthetic blends*~.
Can I use Mobil Delvac™ 1300 Super in a gasoline engine?
Mobil Delvac™ 1300 Super engine oil is universal, meaning it may also be used in gasoline engines requiring the API SN specification, making it a great option for mixed fleet operations.
*Based on average value from a series of eight API CK-4 industry wear tests: Mobil Delvac 1300 Super conventional oil exceeds CK-4 wear requirements by 50% versus Shell Rotella T5 synthetic blend oil exceeds CK-4 wear requirements by 44%.
~Based on Mack T-12 top ring mass loss measurement versus API CJ-4 passing requirement: Mobil Delvac 1300 Super conventional oil exceeds CJ-4 requirements by 72% versus Chevron Delo 400 XLE synthetic blend oil exceeds CJ-4 requirements by 68%.
**Highway miles from vehicle’s first oil change