How to Distinguish Between China 5 and China 6 Vehicle Models?
2 Answers
Methods to distinguish between China 5 and China 6 vehicles are: 1. Check the vehicle conformity certificate; 2. Check the environmental information accompanying vehicle list; 3. Check the vehicle qualification certificate. The differences between China 5 and China 6 are: 1. Different carbon monoxide emission requirements: China 5 carbon monoxide content is 1000 milligrams per kilometer; China 6 carbon monoxide content is 500 milligrams per kilometer. 2. Different particulate matter emission requirements: China 5 particulate matter content is 5 milligrams; China 6 particulate matter content is 3 milligrams. 3. Different nitrogen oxide emission requirements: China 5 nitrogen oxide content is 60 milligrams; China 6 nitrogen oxide content is 35 milligrams. 4. Different non-methane hydrocarbon emission requirements: China 5 non-methane hydrocarbon content is 68 milligrams; China 6 non-methane hydrocarbon content is 35 milligrams.
Last time I helped a friend choose a car, I ran into this issue. The most reliable method is to directly check the Vehicle Conformity Certificate, which clearly states whether it's China 5 or China 6. If there's no certificate, look for the environmental label sticker on the windshield—China 6 models will have a 'VI' mark. Another way is to check the engine model on the vehicle nameplate; China 6 engine numbers usually have a '6' suffix. A simple approach is to ask the salesperson for the environmental information list, which nowadays is mostly clearly labeled. Remember, China 6 is divided into phases a and b—most cars before 2020 are China 6a, while over 90% bought after 2023 are China 6b. To save trouble, the safest bet is to call the manufacturer's customer service with the VIN for verification.
