What does China 6 mean?
2 Answers
China 6 refers to the China 6 Emission Standards, which is the national sixth-stage motor vehicle pollutant emission standard established to prevent motor vehicle pollution emissions and improve ambient air quality. Under the China 6a emission standards, the carbon monoxide emission limit for gasoline and diesel vehicles is set at 0.5g per kilometer, with China 6a generally adopting the minimum limits of the China 5 standards. China 6b represents the true China 6 emission standards, implementing stricter control over nitrogen oxide emissions with significantly reduced values compared to previous standards, while also imposing limits on nitrogen dioxide emissions. The China 6 emission standards serve as an upgraded version of the current China 5 standards, featuring more stringent limits on CO, THC, NMHC, NOX, and PM emissions compared to China 5, along with newly added regulations on PN emissions.
Having driven for nearly twenty years, I have deep feelings about the China VI emission standard. It's the latest national regulation on vehicle exhaust emissions, specifically designed to limit pollutants like carbon monoxide and nitrogen oxides. I remember the earlier China III and China IV standards were relatively lenient, but now the sixth stage is much stricter, forcing automakers to adopt more advanced exhaust treatment technologies. For us long-time car owners, when buying new vehicles, we must choose China VI-compliant ones—they emit less, may save some fuel, and more importantly, help gradually improve urban air quality. However, during maintenance, some new components like particulate filters can be more troublesome and expensive to replace. Overall, China VI drives the entire automotive industry to upgrade, benefiting daily drivers like us with greener travel and lower health risks.
