What are the differences between National 5 and National 6 vehicles?
2 Answers
The differences between National 5 and National 6 vehicles are: 1. Different emission limits: The National 5 standard sets the carbon monoxide limit at 1000 milligrams per kilometer; the National 6a standard requires a carbon monoxide limit of 700 milligrams per kilometer, while the National 6b standard is only 500 milligrams per kilometer. 2. Different release dates: The National 5 standard was released on September 17, 2013; the National 6 standard was released on June 22, 2018. 3. Different issuing departments: The National 5 standard was issued by the Ministry of Environmental Protection; the National 6 standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine. 4. Different requirements: During the National 5 phase, diesel and gasoline vehicles had different emission standards; National 6 adopts a fuel-neutral principle, meaning the emission limits are the same regardless of the fuel type.
I've always been environmentally conscious, and the biggest difference between China 5 and China 6 vehicles lies in the emission standards. China 6 is significantly stricter than China 5, resulting in much less pollution. Harmful emissions like nitrogen oxides and particulate matter have much lower limits, and the addition of real-world driving tests ensures cleaner performance during actual driving. When I drive a China 6 car, I notice a significant reduction in exhaust odors, making it much more eco-friendly and contributing to better urban air quality. This is beneficial for health, especially for children and the elderly, who are safer on smoggy days. In the long run, China 6 cars may retain their value better and won't be affected by traffic restrictions. When it's time to change cars, I always recommend prioritizing China 6—it's a simple step that makes a big contribution to the planet.
