Mobil Delvac 1™ ESP 5W-30

Mobil commercial-vehicle-lube , Papua New Guinea

Fully Synthetic Heavy-Duty Diesel Engine Oil

Product Description

Mobil Delvac 1™ ESP 5W-30 is an advanced synthetic heavy duty diesel engine oil for long and reliable service. The development of this product summarizes more than 90 years of ExxonMobil's research and development knowledge. The goal was to define a product that addresses all features required with modern on-highway truck applications, including those with emission control systems¹. This top performance product offers unsurpassed oxidation stability³ which results in engine cleanliness promoting efficient and smooth engine operation. The robustness of Mobil Delvac 1™ ESP 5W-30 meets or exceeds the longest oil drain intervals defined by major global manufacturers, offering protection during extended oil drains up to 100,000 miles or 160,000km¹, as demonstrated in field trials conducted in US using ultra-low sulphur diesel, American vehicles and on-highway driving conditions. It was also developed and tested to protect the engine with the use of biofuel components to consider different diesel fuel qualities and future, sustainability related fuel components. The advanced lubricant formulation helps to gain fuel economy benefits in modern engine applications². The outstanding wear protection performance of Mobil Delvac 1 ESP 5W-30 is the result of extensive and close cooperative development work of ExxonMobil with major equipment builders. As a result, this product meets or exceeds the requirements of the latest API and ACEA industry specifications for diesel engine oils, as well as the requirements of many major American, and European engine manufacturers.


Features and Benefits

Mobil Delvac 1™ ESP 5W-30 is an outstanding lubricant solution for modern and latest engine technology equipped with emission After-Treatment devices. It was developed by ExxonMobil to maintain unsurpassed oxidation stability³ performance to meet long oil drain intervals and support low maintenance efforts. Mobil Delvac 1™ ESP 5W-30 keeps at the same time critical and hot engine parts clean, also while bio diesel fuel components are used, for long and efficient engine life. This feature, in combination with the sophisticated additive system, ensures exceptional engine wear performance and supports long engine life. The low ash formulation protects at the same time all exhaust after-treatment parts required to meet emissions regulations.



Advantages and Potential Benefits

Extended drain interval capability, up to 100,000 miles, or 160,000km¹

Fewer oil changes and less oil disposal

Enhanced fuel economy potential of up to 2.6%²

Reduced fuel consumption, saving operating cost

Unsurpassed thermal and oxidation stability

Oxidation stability is 2 times vs API CK-4 standard³

Prevention of deposits and smooth engine operation

Step out wear protection, achieving 40% more wear protection versus API CK-4 standard⁴

Reduce engine wear to promote long engine life

Bio fuel compatible

Maintains engine cleanliness and protection with bio fuel components

Emission system protection

Emissions system durability and performance



Recommended by ExxonMobil for use in:


• Most engine generations up to latest and most sophisticated high performance diesel engines with turbo-charger, direct injection and low emission designs, featuring all types of exhaust after-treatment technology


• Heavy duty diesel engines using low sulfur diesel fuels and many biodiesel fuel formulations


• Naturally aspirated and turbo-charged diesel powered equipment


• On-highway short-haul and long-haul trucks and buses


• Off-highway equipment


¹ Results may vary based on fuel quality, vehicle/engine condition, driving and environmental conditions. Please consult OEM or ExxonMobil before implementing extended ODIs


² Based on fuel economy evaluation conducted on test track at Millbrook Proving Ground, Ltd in United Kingdom, compared to mineral 15W-40 engine oil for city driving condition. Actual savings are dependent on vehicle engine type, outside temperature, driving conditions, and your current engine oil viscosity


³ Based on PC-11 industry test data, and on measured viscosity increase in the Volvo T-13 engine test


⁴ Based on Cummins ISM and Mack T-12 engine tests


Specifications and Approvals

This product has the following approvals:

Detroit Detroit Fluids Specification 93K222


MAN M 3677

MAN M 3775

MB-Approval 228.51

MB-Approval 228.52

MTU Oil Category 3.1




This product meets or exceeds the requirements of:










Caterpillar ECF-3

DAF Extended Drain


Properties and Specifications




SAE 5W-30

Kinematic Viscosity @ 40 C, mm2/s, ASTM D445


Kinematic Viscosity @ 100 C, mm2/s, ASTM D445


Total Base Number, mgKOH/g, ASTM D2896


Flash Point, Cleveland Open Cup, °C, ASTM D92


Viscosity Index, ASTM D2270


Ash, Sulfated, mass%, ASTM D874


Density @ 15 C, g/ml, ASTM D1298


Pour Point, °C, ASTM D97



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.