How to Distinguish Whether the Car You Bought is China 5 or China 6 Standard?

[LaAddyson]

You can distinguish between China 5 and China 6 standards from the following points: 1. If you purchased a new car, you can check the "Vehicle Factory Certificate" for the "Emission Standard" section, which will specify the standard. 2. If you purchased a used car, you can differentiate between China 5 and China 6 by checking the environmental label on the upper right corner of the windshield or the insurance policy. 3. You can also distinguish them based on carbon monoxide emissions, nitrogen oxide emissions, and PM particulate matter emissions. Below are the differences between China 5 and China 6 standards: 1. Carbon monoxide emissions: China 5 gasoline vehicles: 1000mg/km, China 5 diesel vehicles: 500mg/km, China 6a: 700mg/km, China 6b: 500mg/km. 2. Nitrogen oxide emissions: China 5 gasoline vehicles: 60mg/km, China 5 diesel vehicles: 180mg/km, China 6a: 80mg/km, China 6b: 35mg/km. 3. PM particulate matter emissions: China 5 gasoline vehicles: 4.5mg/km, China 5 diesel vehicles: 4.5mg/km, China 6a: 4.5mg/km, China 6b: 3.0mg/km.

[StRose]

I once encountered confusion between China 5 and China 6 emission standards when buying a car. First, check the vehicle's environmental compliance certificate or registration document, which clearly states the emission standard, such as 'China 6' being the latest. For China 5, the label is usually found on the co-pilot door frame or under the hood, with different colors and numbers, while China 6 mostly uses blue labels. Additionally, the vehicle conformity certificate will also note it in the environmental section. If the documents are lost, don't worry—take the car to the local environmental bureau or vehicle management office for a free scan and query. A friend of mine didn't check properly after buying a car and failed the annual inspection, causing unnecessary hassle. Higher emission standards come with more restrictions, but China 6 cars are more fuel-efficient and eco-friendly, contributing to cleaner city air—worth paying attention to.

[MacAbigail]

I can easily check the classification method with my phone! Download official apps like 'Eco Travel', enter the 17-digit VIN code at the bottom of the windshield, and get instant results – 'CN6' will be displayed for China VI. Alternatively, visit the China Environmental Protection website and enter the license plate number to check historical records. I've helped neighbors verify new cars this way multiple times. Most China VI vehicles were produced after 2019, with stricter emission controls and significantly fewer pollutants, making daily driving much more reassuring. If unsure, the new car invoice or manual might also indicate it, but digital tools are the most reliable – don't trust verbal claims to avoid being deceived.

[DeLillian]

The most reliable way is to check the vehicle license directly! Open the environmental protection section on the vehicle registration certificate or the duplicate of the driving license, and you'll clearly see the National V or National VI standard code printed there, such as GB18352.5 for National V. I recommend verifying this document on the spot when purchasing a car, as it's authoritative and accurate. National VI vehicles are not restricted in urban traffic-restricted zones. If you're buying a used car, ensure the certificate is complete to avoid disputes. Distinguishing emission standards is simple yet crucial, as it affects long-term usage costs.