Petro-Canada DURON UHP 0W-40 is a high-performance engine oil for severe conditions, featuring advanced high-efficiency additives and premium synthetic base oils. It is suitable for extended oil change intervals even in extremely cold climates, providing exceptional wear protection, improved engine cleanliness, and enhanced oxidation resistance. This oil offers superior cold start performance, maintains viscosity under high temperatures, reduces oil consumption, and helps keep pistons clean. It also provides excellent protection against corrosion and soot, ensuring optimal engine efficiency and durability.