CASTROL GTX Ultraclean

Castrol GTX is one of the world’s most trusted engine oils.

The modern world creates difficult challenges for engines.
Poor fuel quality, heat and tough driving conditions can all lead to sludge that potentially shortens engine life.

Sludge is a sticky deposit that build up in an engine’s vital oil-ways, restricting the flow of oil and preventing it from protecting the engine.

Castrol GTX ULTRACLEAN’s synthetic technology has superior performance. Its Double Action formula cleans away old sludge, and protects against new sludge formation, giving you more control over today´s challenging conditions.
Help extend the life of your engine with Castrol GTX ULTRACLEAN.



  • Provides 50% superior sludge protection compared to tough industry standards*
  • Advanced protection against viscosity and thermal breakdown
  • Superior protection against high temperature deposits
  • Premium quality base oils and anti-wear additives that help extend the life of your engine
*50% cleaner than the API SN industry limit as measured in the ASTM Seq. VG sludge test


  • SAE 5W-30
  • API SN