Mobil Delvac™ Super 15W‑40


Mobil Delvac™ Super 15W-40 is a high performance, heavy duty engine oil that provides proven protection to diesel engines operating in severe on and off-highway service applications. Mobil Delvac™ Super 15W-40 is recommended for use in a wide range of heavy duty applications and operating environments found in the trucking, construction, and agricultural industries.


The key benefits of Mobil Delvac™ Super 15W-40 include: 

Features Advantages and Potential Benefits
Thermal and oxidation stability Controls sludge build-up and deposits
Excellent detergency/dispersancy Cleaner engines and longer engine life
Stay-in-grade shear stability Helps reduce oil consumption and wear


Recommended by ExxonMobil for use in:

  • Diesel-powered equipment from leading diesel engine manufacturers
  • On highway light and heavy duty trucking 
  • Off highway industries including: trucking, construction, quarrying, and agriculture 
  • Mixed diesel/gasoline engine fleets


Mobil Delvac™ Super 15W-40 is recommended by ExxonMobil for use in applications requiring 15W-40


Mobil Delvac™ Super 15W-40  
SAE Grade 15W-40
Viscosity, ASTM D 445
cSt @ 40ºC 114
cSt @ 100ºC 15.1
Viscosity Index, ASTM D 2270 138
Sulfated Ash, wt%, ASTM D 874 0.9
Total Base # , mg KOH/g, ASTM D 2896 8
Pour Point, ºC, ASTM D 97 -30
Flash Point, ºC, ASTM D 92 232
Density @ 15ºC kg/l, ASTM D 4052 0.87