Formulated for both on-and off-road fleets, Duron-E synthetic 5W-40 heavy-duty engine oil from Petro-Canada is licensed to the latest API Heavy Duty Engine Oil category, CJ-4. The oil offers extended drain intervals, low engine wear, minimized oxidative thickening, corrosion protection and good top-up and cold start-up performance. It is suited for four-stroke diesel, gasoline and some natural gas automotive applications where SAE 5W-40 is recommended, including EPA-compliant low-emission engines that employ advanced exhaust after-treatment devices such as diesel particulate filters, with or without diesel oxidation catalysts, increased rates of exhaust gas recirculation and selective catalytic reduction. In addition, the oil is suitable for use in engines powered by both ultra-low-and low-sulphur diesel.
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