How to Distinguish Between China 6a and China 6b?
4 Answers
Methods to identify whether the emission standard is China 6a or China 6b include checking the relevant content on the vehicle certificate, reviewing the environmental information list provided with the vehicle, and querying through specialized websites. Specific details are as follows: Check the relevant content on the vehicle certificate: The vehicle certificate contains many key pieces of information, including the emission standard, which will clearly indicate the national emission standard that the vehicle complies with. Review the environmental information list provided with the vehicle: When purchasing a vehicle through official channels, the accompanying documentation will include an environmental information list. The first section related to vehicle information will have an item for the emission stage, which will clearly and concisely indicate whether the model is China 5 or China 6. Query through specialized websites: After identifying the model you intend to purchase, you can find the specific vehicle identification number in its related documentation. By entering this number on the Motor Vehicle Environmental Protection Website, you can query the relevant vehicle environmental information, including the emission standard it complies with.
Let me share some practical experience with you all. Paying attention to emission standards when buying a car is absolutely crucial. Distinguishing between China VI-A and China VI-B is actually simple: first check the information on the vehicle certification. China VI-A was a transitional phase after 2019 with looser limits, while China VI-B, implemented from 2020, is much stricter with lower PM particulate emission limits and requiring RDE testing. Don't just listen to sales talk when purchasing - always verify by checking the emission label or scanning the VIN code. From daily driving perspective, China VI-B gasoline cars are more fuel-efficient with less pollution, resulting in fewer smoggy days in cities. I recommend prioritizing China VI-B when choosing new cars - it's worry-free and eco-friendly. After all, we drivers should also consider leaving some clean air for future generations, right?
As a car enthusiast, let me break it down simply. The key difference between China 6a and 6b lies in testing: 6b requires RDE (Real Driving Emissions) testing while 6a doesn't. Emission limits are stricter for 6b - for example, CO limits drop from 700mg/km (6a) to 500mg/km (6b). To check, just look at the vehicle's compliance plate or search the model on MIIT's website. Pro tip: While EVs are trending, don't overlook fuel vehicles' upgraded standards - they maintain performance while becoming more reliable. No need to overthink it - buying through official channels usually covers the basics.
From an environmental perspective, China 6b is significantly stricter than 6a, reducing pollutants by more than half, such as the PN particulate matter limit. I believe this difference impacts health: urban air quality has noticeably improved after the implementation of the 6b standard. The distinction is simple: when buying a car, check the environmental information card provided by the salesperson, or look for the year marked in the vehicle manual—cars from 2020 onwards are generally 6b. For daily car use, don't just focus on fuel consumption; better emissions mean long-term savings and peace of mind.
