how to choose CI-4 15W/40 and CI-4 20W/50 diesel engine oil

Created on 10.31

Our company selects high-quality 100% original hydrogenated base oil, 100% original imported additives, and adopts synthetic hydrogenation full effect technology to improve the oil film strength and wear resistance of our oil products, which can reduce friction loss to machines and save fuel under the same power output. Our regular replacement cycle for CI-4 is 400 hours, and our replacement cycle is 500-600 hours. The regular replacement mileage for CI-4 is 20000-25000 miles, while our replacement mileage is 25000-30000 miles. Our CI-4 has two normal models, one is 15W/40 and the other is 20W/50. The low-temperature flowability of 15W-40 is better, and it can reach the lubrication parts faster in cold weather, making it easier for the engine to start cold and reducing starting wear. 20W-50 has higher viscosity at high temperatures and can form a thicker oil film, providing better protection for old engines with high speeds and heavy loads or engines operating in high ambient temperatures.

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