• Engine Oils
  • Heavy Duty Engine Oils




Premium Plus 10W30 CK-4 engine oil is a mixed fleet motor oil recommended for all naturally aspirated and turbocharged four-stroke diesel engines when the API CK-4 service category and SAE 10W-30 viscosity grade are recommended.


Premium Plus CK-4 was specifically formulated to meet the API CK-4 required by OEM diesel engines with Selective Catalytic Reduction (SCR), diesel particulate filter (DPF) and exhaust gas recirculation (EGR) systems to meet new emission standards. It is recommended for older engine models and is fully compatible with the previous API Oil service category.

Available in regions

  • Quebec/East
  • Ontario
  • British Columbia
  • Prairies

Technical Documents

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MULTIGRADE SAE 10W30 Passenger Cars Engine Oils Catalys
Catalys Optimum Full Synthetic SAE 0W-20 Passenger Cars Engine Oils Catalys
Premium Plus 10W-30 Synblend CK-4 Heavy Duty Engine Oils Catalys

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