Castrol GTX CK-4 Conventional Diesel Motor Oil, 15W-40, 1 Gallon


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SKU: W68654142520388 Category:
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Castrol® GTX® Diesel is designed to provide superior protection, conforms to the strict requirements of PC-11 engine oil technology and can be used in diesel engines where API CK-4, CJ-4 and below is required.  It’s a versatile product which can be used in a wide variety range of heavy duty, commercial vehicles and pick up trucks, which makes it ideal for use in mixed fleets. 

Castrol® GTX® Diesel is specially formulation helps to keep the engine cleaner, giving more reliable engine protection and thus prolonging engine life.

Protect your investment with the Castrol Engine Warranty – with coverage for up to 500K miles.  Enrollment is quick, easy and FREE! Learn more and register at

Castrol GTX CK-4 Conventional Diesel Motor Oil, 15W-40, 1 Gallon

Key Features:

  • Protects against oil thickening and deposit build up in critical engine parts
  • Better shear stability and protection against viscosity loss for reliable engine protection
  • Protects from wear and deposits
  • Ideal for use in mixed fleets enabling product rationalization for workshops and mixed fleets, thus lowering their stock costs
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