For many years, Mobil Delvac™ engine oils have helped owner-operators, fleets, construction contractors, agriculture professionals and landscapers achieve long engine life in their vehicles. We offer a variety of formulations including conventional mineral, synthetic blend and full synthetic oils. Learn more about synthetics and the different protection and performance levels available.
Why use synthetic oil?
A synthetic lubricant contains more highly refined base oils than those used in conventional mineral oils, offering you additional protection and performance.
Synthetic engine oil provides a variety of benefits that help keep your engine running at optimal performance.
To understand synthetic engine oils, let's look at the origins of engine oil. There are three basic types of lubricants available:
- Conventional mineral oils, which are the traditional types
- Synthetic blends, which are a blend of conventional and synthetic types
- Full synthetic lubricants, which engine manufacturers are increasingly recommending
All types are made from crude oil that comes from the ground. The difference? Synthetic oil is made from more advanced refining processes and is higher in purity and quality than conventional mineral oils. The refining processes not only remove more impurities from the crude oil but also enable individual molecules in the oil to be tailored to the demands of modern engines. These customized molecules provide higher levels of protection and performance.
Synthetic oil performance is typically more robust, especially in terms of low-temperature pumpability and high-temperature stability, as well as providing protection against deposits.
More benefits of synthetic diesel engine oil:
Excellent low-temperature flow performance
Mobil Delvac 1™ synthetic lubricants are engineered to reduce internal friction, which results in outstanding flow characteristics at low temperatures.
Higher viscosity index translates to a more stable viscosity across a broad temperature range. Along with the outstanding low-temperature performance, Mobil Delvac 1™ synthetic lubricants resist thinning at high temperatures. This means our Mobil Delvac 1 synthetic lubricants provide exceptional protection across a greater range of operating temperatures.
Improved oxidation and thermal stability
Improved oxidation stability and thermal stability in Mobil Delvac 1 synthetic lubricants compared to conventional oils result in less viscosity increase with age and better deposit control. That translates into the potential for extended oil drain intervals. Fewer oil changes and less downtime can help save you time and money.
Excellent wear protection
Newer engines must be able to handle extreme temperatures and high rpm. Mobil Delvac 1 synthetic engine oils were formulated to withstand these challenging operating conditions, offering our best protection for drivers with extended oil drain intervals. Mobil Delvac 1™ ESP advanced full synthetic diesel engine oils provide excellent performance and outstanding wear protection.
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 turningLearn more