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Mobil Delvac 1™ ESP 5W-40

Advanced full synthetic Heavy Duty Diesel Engine Oil

Since December 2016, Mobil Delvac 1™ ESP 5W-40 features a new CK-4 formulation. Get more information about PC-11 product changes.

Mobil Delvac 1™ ESP 5W-40 is an advanced synthetic heavy duty diesel engine oil that helps extend engine life while providing long drain capability and potential fuel economy for modern diesel engines operating in severe applications. This product is formulated to deliver exceptional performance in modern and older hard working engines, including those with emission control systems. Mobil Delvac 1 ESP 5W-40 is recommended for use in a wide range of heavy-duty applications and operating environments found in the on-road transport and off-road mining, forestry, construction, and agricultural industries.

The outstanding performance of Mobil Delvac ESP 5W-40 is the result of extensive cooperative development work with major equipment builders and application of the latest lubrication technology. 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.


Mobil Delvac 1 ESP 5W-40 maintains outstanding performance at significantly higher temperatures than other high performance diesel engine oils.  It also delivers exceptional low temperature fluidity and pumpability at low temperatures for smooth starting in cold down to -35°C.

Mobil Delvac 1 ESP 5W-40 is formulated with advanced synthetic basestocks to help improve fuel economy1.

Features Advantages and Potential Benefits
Meets or exceeds demanding specifications of major OEMs One engine oil for mixed diesel fleet operations
Outstanding thermal and oxidation stability Reduced low temperature sludge build-up and high temperature deposits
Enhanced film strength at high temperatures Reduced engine scuffing and bore polishing
Inherent stay-in-grade shear stability Wear protection and reduced oil consumption; maintains viscosity in severe, high temperature service
Advanced formulation and viscometrics Improved fuel economy
Low volatility Reduced oil consumption
Exceptional low temperature pumpability Easy engine start-up and reduced wear
Enhanced TBN quality reserve Deposit control and extended drain capability
Outstanding resistance to corrosion Extended life of critical wear surfaces
Long drain capability Increased operating efficiency and lower overall cost
Component compatibility  Long gasket and seal life, extended service intervals
Low ash formulation meeting API CK-4 and CJ-4 requirements Long emissions aftertreatment (DPF, DOC and SCR) life

1Compared 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.

 

  • Recommended for the latest heavy duty diesel engines, including those equipped with aftertreatment systems and EGR.
  • Recommended for diesel applications using older and naturally aspirated conventional designs.
  • On-highway engines operating in both high speed/high load and stop-and-go conditions
  • Off-highway engines operating in severe low speed/heavy load conditions using up to 500 ppm sulfur fuels
  • Virtually all diesel powered equipment from American and European equipment builders
  • Refrigeration units

This product has the following approvals:
Detroit Fluids Specification 93K218
Detroit Detroit Fluids Specification 93K222
MACK EOS-4.5
MAN M 3575
MB-Approval 228.31
MTU Oil Category 2.1
VOLVO VDS-4.5
RENAULT TRUCKS RLD-3

This product meets or exceeds the requirements of:
API CK-4
API CJ-4
API CI-4 PLUS
API CI-4
API CH-4
API SM
API SN
JASO DH-2
CATERPILLAR ECF-3
Cummins CES 20081
Cummins CES 20086

 

Mobil Delvac 1 ESP 5W-40 Value
SAE Grade 5W-40
Viscosity, ASTM D 445  
cSt @ 40ºC 81.8
cSt @ 100ºC 13.56
Viscosity Index, ASTM D 2270 170
Density @ 15.6ºC kg/L, ASTM D 4052 0.875
Pour Point, ºC, ASTM D 97 -33
Flash Point, ºC, ASTM D 92 222
Sulfated Ash, wt%, ASTM D 874 1
Total Base Number, mg KOH/g, ASTM D 2896 12.1
CSS, cP, ASTM D 5293 6330 @ -30C
MRV, cP, ASTM D 4684 22000 @ -35C
HTHS @ 150ºC, cP, ASTM D4683 3.7