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QS 0W-40 SN


Duckhams QS 0W-40 SN is fully synthetic engine oil specialised for use in high-performance gasoline and diesel vehicles. Formulated using cutting-edge additive technology and high-quality synthetic base oils to meet the requirements of current vehicles and provide outstanding protection for modern passenger cars.

Duckhams QS 0W-40 SN is formulated for vehicles with extended oil drain intervals. A shear stable formulation designed to give excellent engine cleanliness reducing sludge and deposit formation, it provides outstanding protection in extended oil drain applications. It has been designed to provide excellent anti-wear properties and minimise engine wear particularly during cold start-up.


  • Stay in grade formulation designed to maintain the viscosity of the oil, ensuring suitable protection for engines throughout the extended oil drain interval.
  • High quality thermally stable synthetic base oils and a shear stable formulation mean that the oil retains it’s properties, ensuring good lubrication in the engine, maintaining wear protection throughout the life of the oil.
  • Reduced sludge and deposit formation keep the engine clean to ensure the engine runs at its full potential from oil change to oil change.
  • Excellent anti-wear performance provides advanced protection in all conditions, irrespective of driving style, reducing component wear and extending component and engine life.
  • Low volatility synthetic base oil reduces oil consumption and oil thickening and gives lower hydrocarbon emissions.
  • Excellent low temperature performance gives rapid oil circulation at start-up, even in cold conditions, minimising wear, and extending engine life.