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Fleetmaster 15W-40 CH-4


Duckhams Fleetmaster 15W-40 CH-4 is a multi-grade diesel engine oil for heavy-duty diesel engines. It is formulated using current additive technology and high-quality virgin base oils to meet modern specifications and provide complete protection for all new and old generation vehicles.

Duckhams Fleetmaster 15W-40 CH-4 is a shear stable mineral engine oil, designed to lubricate and protect high-performance diesel engines, even when operating under severe conditions and extended oil drain intervals. It gives excellent control against soot, wear and corrosion and reduces piston and turbocharger deposits.


  • Protects against wear and bore polishing maintaining the engine condition throughout the oil drain interval.
  • Shear Stable Formulation maintains oil viscosity ensuring suitable protection for the engine even when used in extended drain intervals.
  • Protects the engine from soot and piston deposits, maintaining engine cleanliness and performance.
  • Formulated with good base reserve which neutralises acidic combustion products and reduces acid build-up protecting the engine against corrosion.
  • Protects against Turbocharger deposit formation, maintaining turbocharger performance and extending component life.