What are China 5 and China 6?
3 Answers
China 5 and China 6 emission standards are the abbreviations for the fifth and sixth stages of national motor vehicle pollutant emission standards, which require vehicle exhaust emissions to meet certain pollutant content limits. Introduction to China 6 Emission Standard: The China 6 emission standard is an upgraded version of the current China 5 standard, divided into two phases: China 6a and China 6b, to be implemented gradually. It imposes stricter requirements on vehicle exhaust emissions such as carbon monoxide and hydrocarbons compared to China 5, aiming to achieve environmental protection goals. Introduction to the Two Phases: The China 6 emission standard consists of two parts: 'Limits and Measurement Methods for Emissions from Light-duty Vehicles (China 6)' and 'Limits and Measurement Methods for Emissions from Heavy-duty Diesel Vehicles (China 6)'. The former has been implemented since July 1, 2020, and the latter since July 1, 2019. In short, China 6 imposes more stringent requirements on various vehicle emissions.
China's National 5 and National 6 are essentially the country's vehicle emission standards, somewhat like regulations on how clean a car's exhaust should be. National 5 is the older standard, which became widespread around 2017, while National 6 is the updated version, implemented in two phases (A and B) starting from 2019. When I was considering changing my car recently, I noticed that National 6 has stricter requirements, such as lower limits on nitrogen oxide emissions, making it more environmentally friendly. Nowadays, almost all new cars sold comply with the National 6 standard because the government has introduced traffic restrictions—major cities like Beijing and Shanghai don't allow highly polluting vehicles in central areas, and National 5 cars might be stopped. After switching to a National 6 car, I've noticed the exhaust smells less pungent, and there's been a slight reduction in urban smog. Although the price is slightly higher, it’s more worry-free in the long run. Without upgrading these standards, car manufacturers would have to constantly modify their technology, and driving would continue to impact air quality. So, when buying a car now, it’s best to double-check the emission label to avoid mistakes.
I think the China 5 and China 6 emission standards are quite crucial, as they are emission levels set by our country to reduce air pollution. China 6 is more popular now because it imposes stricter limits on exhaust emissions, such as reducing carbon dioxide and particulate matter emissions, with the goal of making the environment cleaner. I usually care about environmental issues, and based on the data, the China 6 standard can help improve urban smog conditions, which is beneficial for everyone's health. Additionally, many regions now have policies requiring new cars to meet the China 6B standard, otherwise, they face registration restrictions. Even the used car market is seeing better sales for China 6-compliant vehicles. I recommend prioritizing China 6 models when choosing a car, as dealers often highlight this point in their promotions, making it easier for us to make informed decisions and avoid pitfalls. Remember to check the vehicle's registration certificate or environmental label when buying a car to avoid mistakes.
