Mobil Delvac 1™ Advanced Fuel Economy 5W-30

Mobil Delvac 1™ Advanced Fuel Economy diesel engine oil

Mobil Delvac 1™ Advanced Fuel Economy 5W-30 is our most sophisticated synthetic heavy duty diesel engine oil, developed to meet API FA-4 Industry and many OEM fuel economy specifications. ExxonMobil aimed to introduce a low viscosity product that strongly contributes to fuel saving characteristics of modern, friction modified engines². Mobil Delvac 1™ Advanced Fuel Economy 5W-30 is designed to provide at the same time exceptional protection for all engine and exhaust after-treatment parts by its advanced low ash formulation. Its unique wear protection technology supports long engine life and reliable operation in a wide range of applications. Mobil Delvac 1™ Advanced Fuel Economy 5W-30 meets and exceeds the longest oil drain interval requirements defined by major manufacturers, offering protection during extended oil drains up to 100,000 miles¹. It was also developed and tested to protect the engine with the use of biofuel components to consider different diesel fuel qualities. The combination of strong fuel economy performance², long oil drain intervals and step out engine and emission system protection makes this product the most sustainable offer ExxonMobil can provide for your business and the environment.


¹ Please refer to the owners handbook for OEM application requirements and oil drain intervals for your vehicle or equipment.

² Compared to an SAE 15W-40 engine oil. Actual savings are dependent on vehicle engine type, outside temperature, driving conditions, and your current engine oil viscosity.


Features and Benefits

Mobil Delvac 1™ Advanced Fuel Economy 5W-30 is the most advanced lubricant solution for latest, fuel efficient engine technology equipped with emission after-treatment devices1. It was developed by ExxonMobil to provide fuel savings² while maintaining outstanding wear performance. Mobil Delvac 1™ Advanced Fuel Economy 5W-30 also provides unsurpassed oxidation stability performance³, providing long oil drain intervals to support low maintenance efforts. The low ash formulation protects at the same time all exhaust after-treatment parts required to meet emissions regulations.


³ Based on PC-11 industry test data.


The key benefits of Mobil Delvac 1™ Advanced Fuel Economy 5W-30 include:


Advantages and Potential Benefits

Enhanced fuel economy potential

Reduced fuel consumption

Step out wear protection

Reduced engine wear to promote long engine life

Extended drain interval capability

Fewer oil changes and less oil disposal

Unsurpassed Oxidation stability

Prevention of deposits and smooth engine operation

Emission system protection

Emissions system durability and performance

Bio fuel compatible

Maintains engine cleanliness and protection with bio fuel components



Please refer to the owners handbook for OEM application requirements and oil drain intervals for your vehicle or equipment


Recommended by ExxonMobil for use in:

     •  Sophisticated heavy duty 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

     •  Direct injection or naturally aspirated and turbo-charged diesel powered equipment

     •  On-highway short-haul and long-haul trucks, buses, pick-ups and vans


Specifications and Approvals

This product has the following approvals:

DetroitDetroit Fluids Specification 93K223


This product meets or exceeds the requirements of:




Cummins CES 20087



Properties and Specifications




SAE 5W-30

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


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


Cold-Cranking Simulator, Apparent Viscosity @ -30 C, mPa.s, ASTM D5293


Mini-Rotary Viscometer, Apparent Viscosity, -35 C, mPa.s, ASTM D4684


Hi-Temp Hi-Shear Viscosity @ 150 C 1x10(6) sec(-1), mPa.s, ASTM D4683


Viscosity Index, ASTM D2270


Ash, Sulfated, mass%, ASTM D874


Total Base Number, mgKOH/g, ASTM D2896


Pour Point, °C, ASTM D97


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


Density @ 15 C, g/ml, ASTM D1298



Health and safety

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