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Diesel Gard 15W-40 CI-4/SL


Duckhams Diesel Gard 15W-40 CI-4/SL is a  top tier multi-grade diesel engine oil for heavy-duty diesel engines. Formulated using modern additive technology and high-quality virgin base oils to meet current specifications and provide advanced protection for all vehicles operating under severe conditions.

Duckhams Diesel Gard 15W-40 CI-4/SL is a shear stable high-quality mineral engine oil designed for use in high output, high-speed diesel engines including turbocharged engines and engines using exhaust gas recirculation. Designed to operate under severe conditions, such as extended drain intervals, it provides excellent protection against wear and corrosion and maintains engine cleanliness. Not suitable for use in engines fitted with Particulate Filters.


  • Excellent Protection against wear and bore polishing protects the engine and maintains 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 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 an extending component life.
  • Not suitable for use in engines fitted with Particulate Filters.