How to Identify China 5 and China 6 Emission Standards for Vehicles?
2 Answers
To determine whether a vehicle meets China 5 or China 6 emission standards, you can check the vehicle's compliance certificate or the environmental information list that comes with the vehicle. Alternatively, you can visit the Motor Vehicle Environmental Protection Website and enter the vehicle identification number (VIN) or engine number to query the information. The following are key details about China 5 and China 6 emission standards: 1. The primary difference between China 5 and China 6 emission standards lies in the catalytic converter. Vehicles meeting China 6 standards are equipped with a more efficient catalytic converter, which ensures that the exhaust emissions comply with the stricter China 6 standards. 2. China 5 emission standard is the fifth stage of national vehicle pollutant emission standards. It reduces nitrogen oxide (NOx) and particulate matter (PM) emissions by 25% and 80%, respectively, resulting in an overall emission reduction of 10%-15% for China 5 vehicles. The China 6 emission standard imposes even stricter limits on pollutant emissions. 3. The China 5 standard reduces carbon monoxide (CO) emissions by 30%. Under the China 6 standard, CO emissions are required to decrease by 50% compared to China 5. China's China 6 emission standard is divided into two phases: China 6a and China 6b. China 6a serves as a transitional phase, while China 6b represents the full implementation of the China 6 emission standard.
I saw someone asking how to tell if a car meets China 5 or China 6 emission standards, which is actually quite important, especially now that major cities have strict traffic restrictions. When I drive, I usually check the label under the hood first—it will indicate "China V" or "China VI." Alternatively, you can look at the environmental certification on the back of the vehicle’s compliance certificate. Nowadays, many mobile apps can scan the VIN to find this information, which is much more convenient. When buying a used car, be sure to confirm this—China 5 cars may not be allowed in central urban areas, and their resale value is lower, while China 6 cars are more eco-friendly, have better emission controls, and even save on fuel costs. I recommend regularly checking the relevant documents to avoid last-minute panic when restrictions hit.
