• Engine Oils
  • Passenger Cars Engine Oils

Catalys Optimum Full Syn HD 0W-40



Catalys Optimum Full Syn HD is a premium, fully synthetic engine oil developed for use in four-stroke diesel engines operating under extreme temperature conditions. It is designed for new diesel engines equipped with exhaust gas recirculation device (EGR), particle filters with or without catalyst. Catalys Optimum Full Syn HD is available in grades SAE 0W40 and SAE 5W40.


Catalys Optimum Full Syn HD meets the requirements of all major diesel engine manufacturers for on-road and off-road applications. These oils are particularly suitable for use in very low ambient temperatures where engine starting in extreme conditions is necessary. Catalys Optimum Full Syn HD exceeds API CK-4 requirements as well as the standards of major North American manufacturers such as Cummins, Detroit Diesel, Mack, Volvo and Ford. For a complete and detailed list of OEM specifications, please consult your local Catalys Lubricants representative.


Contact one of our experts to find out about available sizes.

Available in regions

  • Quebec / Atlantic
  • Ontario
  • Alberta

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