What is the difference between China 5 and China 6?
2 Answers
The differences between China 5 and China 6 are as follows: 1. Different carbon monoxide emissions: China 5 has a carbon monoxide emission of 1,000 milligrams; China 6 has a carbon monoxide emission of 700 milligrams. 2. Different emission limits: The emission limit for China 5 is 0.0045 grams per kilometer; for China 6, it is 0.25 grams per kilometer. 3. Different issuing authorities: The China 5 standard was issued by the Ministry of Environmental Protection; the China 6 standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine. 4. Different letter representations: China 5 is represented by the letter V; China 6 is represented by the letters VI.
The main difference between China 5 and China 6 lies in the environmental standards, with China 6 being stricter. For example, the emission limits are lower, and pollutants like carbon monoxide and nitrogen oxides are reduced by nearly 30%, which is crucial for urban air quality, reducing smog and health issues. In big cities like Beijing, China 6 can effectively reduce the generation of PM2.5, protecting the respiratory system, especially benefiting children and the elderly. Additionally, China 6 requires vehicles to be tested under real driving conditions, unlike China 5 which was only tested in laboratories, making it more aligned with real-life scenarios. To promote green development, China began implementing China 6 in 2020, while China 5 was introduced in 2017. The new standard pushes automakers to upgrade their technology. In the long run, this is beneficial for environmental improvement, but for ordinary people, it's important to check whether a car meets China 6 standards when purchasing, otherwise, they might face driving restrictions in stricter regions. Also, pay more attention to exhaust pipe maintenance during regular servicing to avoid fines for exceeding standards.
