
National 5 and National 6 vehicles differ in the following aspects: 1. Price difference: National 6 vehicles are equipped with additional components compared to National 5, and automakers also incur extra costs from vehicle declaration, various tests, and production. This results in National 6 vehicles being significantly more expensive than National 5 vehicles. 2. Vehicle retirement timeline difference: For example, 2010 National 3 trucks and 2010 National 4 trucks can still operate in Beijing, but as more cities impose restrictions on older vehicles, they are effectively phased out. Therefore, even for vehicles of the same year, their operational timelines may differ. 3. Road access rights and entry restrictions: Many local policies impose traffic restrictions on low-emission standard vehicles, with some older emission standard vehicles even being completely banned from roads, leading to limited or prohibited access in certain areas. 4. Residual value difference: Due to retirement timelines, road access restrictions, and entry limitations in certain areas, vehicles with the same condition but different emission standards can have significantly different residual values. Additionally, vehicles with excessively low emission standards are harder to sell.

I've been driving for decades, and the biggest difference between China 5 and China 6 lies in the environmental emission standards. China 5 was implemented starting in 2017, with relatively looser pollutant controls. However, since China 6 came into effect in 2019, the emission requirements have become much stricter, with reductions of nearly half in carbon monoxide and nitrogen oxides. Technically, China 6 vehicles must be equipped with particulate filters to trap exhaust particles, resulting in quieter operation and less smoke. In terms of price, new China 6 vehicles might cost a few thousand yuan more, but they have higher resale value in the used car market and are easier to register in big cities like Beijing and Shanghai. From a driving experience perspective, there's not much change in power and fuel consumption. When it's time to change cars, I recommend China 6—it's more cost-effective and environmentally friendly in the long run.

As a young driver who frequently uses the car, I believe the main differences between China 5 and China 6 standards lie in emissions and urban policies. The China 6 standard is more stringent, significantly reducing pollutant levels, such as lowering particulate emissions to very low levels, with vehicles incorporating additional filter technologies. Compared to China 5, which was introduced in 2017, China 6 started in 2019, and most new cars have been upgraded accordingly. In heavily polluted cities, registering a China 6 vehicle is easier, saving the hassle of long queues. Although buying a new car costs a bit more, it holds higher resale value, especially in regions like Shenzhen and Guangzhou, where market prices have risen. The driving experience remains smooth, with no noticeable impact on daily fuel expenses.

Our family car has been using the China 5 standard for several years, and now we've switched to China 6. The difference is that the China 6 emission standards are stricter, with reduced pollutants and added filtration devices to decrease exhaust emissions. It's more advanced technically, making the air cleaner. In cities, China 6 cars are more convenient for licensing and inspections. They are slightly more expensive but hold their value better, drive more steadily, and are somewhat better for children's health.

From a technical perspective, the differences between China V and China VI emission standards are significant. China VI regulations are stricter, requiring lower limits for pollutants such as nitrogen oxides and mandating the installation of particulate filters. China VI is divided into Phase A and Phase B, with Phase B being more stringent. Implemented nationwide in 2019, China VI involves more technological upgrades compared to China V. While vehicle purchase costs increase, used car market values rise. Environmental benefits show marked improvement.


