What is the difference between National V and National VI vehicle standards?
2 Answers
The differences between National 5 and National 6 vehicle standards are: 1. Different emission limits: 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; The National 5 standard requires a carbon monoxide limit of 1000 milligrams per kilometer. 2. Different release dates: The National 6 standard was released on June 22, 2018; The National 5 standard was released on September 17, 2013. 3. Different issuing authorities: The National 6 standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision; The National 5 standard was issued by the Ministry of Environmental Protection. 4. Different requirements: National 6 adopts the fuel-neutral principle, meaning that regardless of the fuel type used, the emission limits are the same; National 5 had different emission standards for diesel and gasoline vehicles during its implementation phase.
From an environmental perspective, let me state a fact: China 5 and China 6 are different levels of emission standards, with China 6 imposing much stricter limits on pollutants. For example, the emission levels of carbon monoxide and nitrogen oxides are significantly reduced under China 6 standards, approximately 30% to 50% lower than China 5, which is incredibly helpful for improving urban air quality. Many of my friends have noticed that smoggy days in big cities have decreased somewhat, which is directly related to vehicles upgrading to the China 6 standard. In the long run, China 6 has also promoted the development of clean technologies, such as automakers developing low-emission engines or shifting to electric vehicles, making our breathing healthier. When choosing a new car now, I would recommend prioritizing China 6-compliant vehicles. They not only reduce environmental pollution but are also more aligned with future policy directions, avoiding obsolescence. In short, from an environmental standpoint, China 6 is a significant step forward.
