Which is Better, China 5 or China 6?
2 Answers
Of course, China 6 is better. If you are buying a car now and don't plan to use it for a long time, you can opt for a China 5 model, as China 5 cars are currently cheaper. However, if you intend to use the car for an extended period, it's better to choose a China 6 model. Here is an introduction to the China 5 and China 6 emission standards: China 5 Emission Standard: The carbon monoxide emissions per kilometer driven must not exceed 1000 milligrams; non-methane hydrocarbon emissions per kilometer driven must not exceed 68 milligrams; nitrogen oxide emissions per kilometer driven must not exceed 60 milligrams; and PM (particulate matter) emissions per kilometer driven must not exceed 4.5 milligrams. China 6 Emission Standard: The carbon monoxide emissions per kilometer driven are limited to 500 milligrams; nitrogen oxide emissions per kilometer driven are limited to 35 milligrams; PM emissions per kilometer driven are limited to 3 milligrams; and non-methane hydrocarbon emissions per kilometer driven are limited to 35 milligrams. Additionally, the testing cycles differ, comprehensively assessing vehicle emissions during cold starts, acceleration and deceleration, and high-speed, high-load conditions. This covers a broader range of engine operating conditions and imposes higher requirements on vehicle emission control performance.
China VI (National VI) emission standards are far superior in terms of environmental protection. They significantly reduce harmful emissions such as nitrogen oxides and particulate matter, which is particularly beneficial for improving air quality, especially in large cities prone to frequent smog. The China VI standards require new vehicles to be equipped with more advanced catalytic converters and sensors. Although the initial purchase cost might be higher, they offer better fuel efficiency, making them more economical in the long run. Having driven both China V and China VI vehicles, I find the lower emissions of China VI models more reassuring during stop-and-go commutes, with noticeably fresher air quality. As environmental policies tighten, more cities are restricting China V vehicles from entering urban areas, so opting for China VI helps avoid such inconveniences. If you prioritize health and urban sustainability, China VI is undoubtedly the better choice.
