What is China VI Emission Standard Equivalent to?

2 Answers
DiNaomi
07/29/25 5:16am
China VI emission standard is equivalent to China 6, which is divided into two phases: China 6a and China 6b. China 6a serves as a transitional phase, while China 6b represents the true China 6 emission standard. Taking gasoline vehicles as an example, China 6a standard is a slight improvement over China 5, mainly targeting CO emissions and PN particulate matter. The China 6b standard is significantly more stringent. Automotive exhaust emission standards regulate the content of harmful gases such as carbon monoxide, PM, and soot emitted from vehicle exhaust. The transition from China 5 to China 6 involves improvements in intake and exhaust efficiency, exhaust gas recirculation efficiency, etc., to achieve the goal of reducing harmful gas emissions.
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MacJohnny
08/12/25 8:52am
To be honest, China VI is actually China 6, which refers to China's sixth-stage vehicle emission standards. I did some research when I bought my car before, and it's much stricter than older standards like China V, requiring significant reductions in pollutants such as nitrogen oxides and particulate matter. Many cities started implementing it from 2019, including major ones like Beijing and Shanghai, where new cars must meet China VI standards to be registered. This isn’t just about environmental protection—it also makes cars more fuel-efficient and cleaner to drive. I’ve seen on forums that choosing a China VI-compliant car can help avoid future driving restrictions or failing annual inspections, and it can even be a selling point when buying or selling used cars—definitely worth paying attention to. If you want to check your car’s standard, just look at the manual or the environmental label on the rear of the vehicle.
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