
Junma Auto's engines are from the Airflow series, which utilize German Mahle technology. Among Junma Auto's models, the Junma S80 is equipped with the TNN4G15T engine, delivering a maximum power of 115kW and a maximum torque of 215Nm. For daily maintenance of the Atenza engine, the following methods can be employed: Use lubricating oil of the appropriate quality grade. For gasoline engines, select SD--SF grade gasoline engine oil based on the additional devices in the intake and exhaust systems and usage conditions; for diesel engines, choose CB--CD grade diesel engine oil according to mechanical load, with the selection standard not lower than the manufacturer's specified requirements; Regularly replace the engine oil and filter. The quality of any grade of lubricating oil will change during use. After a certain mileage, its performance deteriorates, leading to various engine issues. To prevent faults, change the oil regularly based on usage conditions and maintain an appropriate oil level; When oil passes through the fine pores of the filter, solid particles and viscous substances accumulate in the filter. If the filter becomes clogged and oil cannot pass through, the filter may burst or the safety valve may open, allowing oil to bypass through the bypass valve and carry contaminants back to the lubrication areas, accelerating engine wear and increasing internal contamination; Regularly clean the crankcase. During engine operation, high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls, mixing with metal particles from component wear to form sludge. Small amounts remain suspended in the oil, while larger amounts precipitate, clogging filters and oil passages, making engine lubrication difficult and causing wear; Regularly use a radiator cleaner to flush the radiator. Removing rust and scale deposits not only ensures the engine operates normally but also extends the overall lifespan of the radiator and engine.

I've driven several Junma vehicles, like the SEEK 5 SUV, which mostly use a 1.5-liter turbocharged gasoline engine, reportedly manufactured by Chongqing Changan with the model code JL476ZQCF. This engine delivers around 156 horsepower, offering strong acceleration from a standstill and smooth city driving, with relatively low fuel consumption averaging 8-9 liters per 100 kilometers. The downside is that the power feels a bit weak on highways, and the engine occasionally vibrates after prolonged use—it's advisable to use higher-quality engine oil and spark plugs during maintenance. The Junma brand is likely to disappear soon, so finding replacement parts might become difficult; it's best to check if the dealerships are still operational before purchasing. The turbocharging technology is fairly mature but not as durable as joint-venture brands, making it suitable for budget-friendly family use.

I have a Jonway MEET 3 at home with a 1.5T engine. It's been almost two years and it's been performing decently. The acceleration response is quick, especially for overtaking in the city, and the noise level is low with good sound insulation. However, the fuel consumption is close to 10 liters per 100 kilometers, which is on the higher side, and it becomes more noticeable when using the air conditioning in summer. For maintenance, I just change the engine oil and air filter on schedule, and each service costs a few hundred yuan, which is not expensive. After the brand went bankrupt, I became concerned about warranty issues, so I suggest checking the after-sales service channels before buying a car. Overall, the engine is reliable, but it's important to choose the right model and not just go for the cheapest option.

Maintaining a Junma engine isn't too troublesome. Common issues include power loss caused by carbon buildup or aging wiring. Regular oil changes every 5,000 kilometers, along with checking belts and filters, can minimize problems. Fuel consumption averaging above 9 liters is considered normal. The advantage of turbocharging is strong low-speed torque, while its weakness is higher fuel consumption at high speeds. Parts using generic domestic products are easy to find, but with the brand's instability, reliance on third-party repair shops becomes necessary. Simple maintenance can be DIY, just ensure no shortage of oil and coolant.


