How to Identify Whether a Sedan is China 5 or China 6 Standard?
2 Answers
To determine whether a sedan meets the China 5 or China 6 emission standard, follow these steps: 1. For new cars, the simplest method is to check the vehicle's compliance certificate; 2. For older cars, look for the environmental label affixed to the upper right side of the front windshield. The China 5 emission standard is marked with a 'V', while the China 6 standard is marked with a 'Ⅵ'. The primary difference between China 6 and China 5 lies in the emission levels, with China 6 standards being significantly lower than China 5. Under China 5 standards, gasoline vehicles emit 1000 mg of carbon monoxide per kilometer, whereas China 6 standards reduce this to 700 mg per kilometer. Compared to China 5, the China 6 standard reduces nitrogen oxide emissions by 77%, particulate matter by 67%, introduces limits on particulate number, and imposes stricter requirements on emission control device durability and onboard diagnostic systems.
As a long-time car owner, I think identifying whether a sedan meets China 5 or China 6 emission standards is quite straightforward. The most direct method is to check the environmental label affixed at the lower left corner of the windshield, which will indicate 'China V' or 'China VI'. The China 6 standard is stricter and divided into Phase A and Phase B, with Phase B being more advanced. If you've already purchased a car, check the sales invoice or the vehicle certification—these documents usually specify the emission level. For new cars, salespeople typically emphasize this point. When buying a used car, ask the seller to provide relevant documents to avoid purchasing a vehicle that doesn't comply with urban driving restrictions. China 6-compliant cars are not only more environmentally friendly with lower exhaust emissions but may also be exempt from driving restrictions in major cities. They tend to be more fuel-efficient and may require less maintenance in the long run. I remember paying special attention to choosing a China 6B-compliant car when I upgraded, as it helps reduce air pollution.
