Engine Oil,Engine Oil 15W/40 CJ4,15W/40,15W/40 CJ4,15W/40 CJ4 oil

extro diesel engine oil


Extro Prime 15W/40CJ4 is premium multipurpose diesel engine oil. The Extro Prime 15W/40CJ4 oil  is designed for the most severe performance requirements of diesel vehicles. Extro Prime 15W/40CJ4 oil assures outstanding protection against high temperature engine deposits, oil degradation, oil thickening and corrosion resistance. Extro Prime 15W/40CJ4 oil has an excellent shear stability to maintain viscosity under severe, high temperature operations. Extro Prime 15W/40CJ4 oil exhibits outstanding control on soot induced thickening and soot induced wear.


  • Reduced engine scuffing and bore polishing.
  • High engine cleanliness.
  • Effective cam/tappet and valve train wear protection.
  • Improved control of oil consumption.
  • Easier cold starting.
  • Excellent all weather performance due to improved cold weather properties. Has the potential of long drain interval.


Extro Prime 15W/40CJ4 is recommended for Tata Cummins B-Series mechanical engines. Extro Prime 15W/40CJ4 oil can be used for other OEMs, new generation commercial diesel vehicles of both American and European design operating on Heavy duty on-highway and off-highway equipment’s.