What do China V and China VI vehicles mean?
2 Answers
China V and China VI refer to vehicle emission standards, which regulate the content of harmful gases such as carbon monoxide, PM, and soot emitted from vehicle exhaust. The transition from China V to China VI includes improvements in intake and exhaust efficiency, exhaust gas recirculation efficiency, etc., with the ultimate goal of reducing the levels of harmful gases. Here is some information about China VI: 1. The China VI emission standard is an upgraded version of the current China V emission standard. It imposes stricter limits on the emissions of CO (carbon monoxide), THC (total hydrocarbons), NMHC (non-methane hydrocarbons), NOX (nitrogen oxides), and PM (particulate matter) compared to the China V standard. Additionally, it introduces new regulations on PN (particulate number) emissions. 2. According to estimates, under the China VI emission standard, light-duty gasoline vehicles will see a reduction of approximately 50% in emissions of carbon monoxide, hydrocarbons, non-methane total hydrocarbons, and nitrogen oxides compared to the China V phase, with particulate matter emissions reduced by about 40%. For heavy-duty diesel vehicles, nitrogen oxides and particulate matter emissions will be reduced by more than 60% compared to the China V phase.
China National V and VI vehicles refer to the emission standard levels for automobiles in China. National V is the fifth stage of the national motor vehicle pollutant emission standards, mainly implemented around 2017, which limits pollutants emitted by gasoline and diesel vehicles, such as carbon monoxide, nitrogen oxides, and particulate matter. National VI is the sixth stage standard, gradually introduced in 2020, divided into two levels, a and b, with lower emission limits and higher technical requirements for vehicles, adopting more advanced catalytic converters and diagnostic systems to control pollution. I believe this is not only an upgrade in environmental regulations but also affects car purchasing choices—National VI vehicles are cleaner but may increase maintenance costs, while some older National V vehicles face restrictions in cities with driving limitations. In the long run, such standards drive the automotive industry toward electrification, reducing urban smog caused by exhaust emissions.
