
China V vehicles refer to those that comply with the 'China V Emission Standard for Motor Vehicles'. The emission standards for motor vehicles are established to implement environmental protection laws, reduce and prevent pollution from vehicle exhaust, protect the ecological environment, and ensure human health. Here are methods to check the emission standard of a vehicle: 1. Look at the front windshield, where the vehicle's environmental protection label is usually clearly marked. 2. Visit the official website of the vehicle environmental protection department for inquiries. 3. Check the documentation provided by the dealer at the time of purchase, typically starting from the vehicle conformity page or the first page of the vehicle certification. 4. If unable to find the information, take the vehicle registration form or a copy to the vehicle management office for verification. 5. Make a rough estimation based on the year the vehicle was registered.

China 5 vehicles are those that comply with the National Phase 5 emission standards for motor vehicles. This standard was implemented nationwide starting in 2017, requiring vehicles to emit significantly fewer pollutants than the previous China 4 standard. Simply put, China 5 vehicles release fewer harmful substances like carbon monoxide and nitrogen oxides in their exhaust, making them more environmentally friendly. To determine if a vehicle is China 5 compliant, you can check the label on the vehicle conformity certificate or directly refer to the environmental information accompanying the vehicle. Now that the China 6 standard is in place, many regions no longer allow new China 5 vehicles to be registered, but they are still common in the used car market. Driving a China 5 vehicle doesn’t affect daily use, but it may face more traffic restrictions in the future.

When I bought a car, I specifically researched the China V emission standard. It's like setting new rules for vehicle exhaust, requiring manufacturers to make emissions cleaner. Many private cars on the road now comply with China V, especially those produced between 2016 and 2018. Compared to China IV vehicles, China V cars have a more efficient exhaust catalytic converter, and diesel vehicles also come equipped with a particulate filter. If you come across unusually cheap cars in the used car market, be cautious and check if they're actually China IV models being passed off as China V, as the registration policies differ. Some cities like Beijing, Shanghai, Guangzhou, and Shenzhen have already fully implemented the China VI standard.

The China 5 emission standard primarily controls vehicle pollutant emissions. It stipulates that nitrogen oxide emissions from gasoline vehicles must not exceed 0.06 grams per kilometer, which is over 25% stricter than the China 4 standard. I recall many older models being directly discontinued for failing to meet this standard, with manufacturers equipping new vehicles with OBD systems to monitor exhaust emissions. When buying used cars now, special attention is needed - China 5 vehicles transferred from other regions may not be eligible for license plates in certain cities. With the implementation of China 6 standards, the resale value of China 5 vehicles is declining, though they can still be driven for several more years in smaller cities. A friend at the emission testing station mentioned that China 5 vehicles pass annual inspections much more easily than older models.


