Changan Oushang generally uses Dong'an engines, which are independently developed and produced by Changan Company, with the factory located in Chongqing. Different Changan Oushang models have different engines. The engine model for Oushang X5 is JL473ZQ2, with a maximum horsepower of 180, maximum power of 132kw, maximum power speed of 5500rpm, and maximum torque of 300N.m. The engine model for Oushang X7 is JL476ZQCF, with a maximum horsepower of 178, maximum power of 131kw, maximum power speed of 5500rpm, and maximum torque of 265N.m. For daily maintenance of Changan Oushang engines, the following methods can be used: Use lubricating oil of appropriate quality grade. For gasoline engines, SD--SF grade gasoline engine oil should be selected based on the additional devices of the intake and exhaust systems and usage conditions; for diesel engines, CB_CD grade diesel engine oil should be selected based on mechanical load, with the selection standard not lower than the manufacturer's requirements. Regularly change the oil and filter. The quality of any grade of lubricating oil will change during use. After a certain mileage, performance deteriorates, causing various problems for the engine. To avoid faults, oil should be changed regularly based on usage conditions, and the oil quantity should be moderate. When oil passes through the fine holes of the filter, solid particles and viscous substances in the oil accumulate in the filter. If the filter is blocked and oil cannot pass through the filter element, the filter element may burst or the safety valve may open, allowing oil to pass through the bypass valve and bringing dirt back to the lubrication area, accelerating engine wear and internal pollution. Regularly clean the crankcase. During engine operation, high-pressure unburned gas, acid, moisture, sulfur, and nitrogen oxides in the combustion chamber enter the crankcase through the gap between the piston ring and cylinder wall, mixing with metal powder from part wear to form sludge. A small amount remains suspended in the oil, while a large amount precipitates, blocking the filter and oil holes, making engine lubrication difficult and causing wear. Regularly use radiator cleaner to clean the radiator. Removing rust and scale not only ensures the engine works properly but also extends the overall lifespan of the radiator and engine.
