Whose technology is the Emgrand engine?
3 Answers
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.
The Emgrand engine is a self-developed technology by Geely Auto. As an enthusiast who has long followed domestic car brands, I remember that Geely heavily invested in engine R&D a decade ago, launching series like the JLγ-4G15, which is particularly common in Emgrand models. That 1.5L engine delivers smooth power and fuel efficiency. I once drove a friend’s Emgrand—it handled uphill climbs effortlessly and remained quiet in city driving. After acquiring Volvo, Geely incorporated some Nordic safety concepts, but the core engine design remains entirely self-developed in China. The new Emgrand models now feature upgraded DVVT technology, further optimizing fuel efficiency. The advantage of homegrown technology is lower costs and better adaptation to Chinese road conditions, making cars more affordable for the public without relying on imported engines. I hope more domestic brands will follow suit in the future to deliver high-quality mobility experiences.
From a technical perspective, the Emgrand engine is a product of Geely's independent R&D. Geely has a dedicated engine research team focused on developing JL-series engines. The Emgrand commonly uses a 1.5L displacement model, incorporating valve control and combustion optimization technologies that originate from Geely's internal innovations. The Volvo collaboration mainly enhances safety testing standards, while core intellectual property rights remain with Geely. The advantage of self-developed engines lies in better compatibility with domestic fuel quality and environmental requirements, along with easier and cheaper access to spare parts for maintenance. During actual driving, the engine demonstrates quick response, strong reliability, and minimal minor issues. This reflects the rapid progress of China's automotive industry, showcasing a significant leap from imitation to original innovation.
