Castrol GTX 5W-40 C3
Superior sludge protection to help extend engine life


Castrol GTX is one of the world’s most trusted engine oils.
It's more than just oil. It’s liquid engineering that protects against the problems your engine faces every day. Severe driving conditions can cause the build up of a thick, tar-like substance called sludge. Sludge can block your engine’s vital oilways like cholesterol – and if untreated it can rob an engine of power and, ultimately, its life.
Castrol GTX Double Action formula cleans away old sludge*, and protects against new sludge formation better than tough industry standards
Help extend the life of your engine with Castrol GTX.

*Vs API SN Limits/ACEA C3 Industry Standards.


Castrol GTX 5W-40 C3 is suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA C3, API SN/CF 5W-30 lubricant.
Castrol GTX 5W-40 C3 is approved for use in vehicles from leading manufacturers please refer to the specifications section and your owners handbook.
GM dexos2™: supersedes GM-LL-B-025 and GM-LL-A-025  : D20788IB082


Castrol GTX 5W-40 C3 provides:

  • Provides superior protection against engine sludge*
  • Advanced protection against viscosity and thermal breakdown.
  • Premium quality base oils and anti wear additives to help extend the life of your engine.
  • Helps minimize oil consumption
  • Protects emissions control equipment like Diesel Particulate Filters

*Vs API SN Limits/ACEA C3 Industry Standards.

Castrol GTX 5w-40 C3

  • Product Performance Claims
    ACEA C3


    Meets Fiat 9.55535-S2


    MB-Approval 226.5/ 229.31/ 229.51

    Renault RN 0700 / RN 0710