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IT'S MORE THAN JUST OIL. IT'S LIQUID ENGINEERING.

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  3. DIESEL ENGINE OILS
  4. DIESEL ENGINE OIL BRANDS
  5. CASTROL ASSURON

CASTROL ASSURON

Castrol® Assuron™ is a line of heavy-duty, monograde diesel engine oils
 

Castrol Assuron (SAE 10W, 30, 40, and 50) is a line of heavy-duty, monograde diesel engine oils that couple select base stocks with a carefully balanced additive package.

 

  • Castrol Assuron has proven performance in various on- and off-highway heavy-duty diesel engines, particularly in applications requiring API CF-2
  • Castrol Assuron is extremely resistant to the formation of high-temperature deposits; its dispersant package also works to keep the cooler areas of the engine from sludge and other harmful deposits
  • Enhances engine performance
  • Protects engine parts for extended life
  • Reduces maintenance costs
Castrol Assuron 10W

Castrol Assuron 10W

Castrol Assuron Industry Specifications and OEM Approvals

Castrol Assuron 10W meets or exceeds the requirements of the following API categories:

  • CF
Castrol Assuron 30

Castrol Assuron 30

Castrol Assuron Industry Specifications and OEM Approvals

Castrol Assuron 30 meets or exceeds the requirements of the following API categories:

  • CF-2
  • CF
Castrol Assuron 40

Castrol Assuron 40

Castrol Assuron Industry Specifications and OEM Approvals

Castrol Assuron 40 meets or exceeds the requirements of the following API categories:

  • CF-2
  • CF
Castrol Assuron 50

Castrol Assuron 50

Castrol Assuron Industry Specifications and OEM Approvals

Castrol Assuron 50 meets or exceeds the requirements of the following API categories:

  • CF-2
  • CF