Whose technology is the Emgrand engine?

[LeNova]

The Emgrand engine is powered by Geely's technology, which is a naturally aspirated engine independently developed by Geely Auto, so it belongs to domestic engines. The Emgrand has two engines, with model numbers JLC-4G15B and JLY-4G15. The JLC-4G15B engine has a maximum horsepower of 114 hp, a maximum power of 84 kW, a maximum power speed of 5000 rpm, and a peak torque of 147 N·m. The JLY-4G15 engine has a maximum horsepower of 109 hp, a maximum power of 80 kW, a maximum power speed of 6000 rpm, and a peak torque of 142 N·m. The Emgrand's engine can be maintained daily using the following methods: 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 according to mechanical load, with the selection standard not lower than the manufacturer's requirements. Regularly change the oil and filter. The oil 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, change the oil regularly according to usage conditions and keep the oil volume 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 bypass through the bypass valve and still bring 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 from the combustion chamber enter the crankcase through the gap between the piston ring and the cylinder wall, mixing with metal powder generated by part wear to form sludge. A small amount remains suspended in the oil, while a large amount precipitates, clogging 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 normal engine operation but also extends the overall lifespan of the radiator and engine.