How to Distinguish Between China 5 and China 6 Emission Standards When Buying a Car?
3 Answers
The China 5 emission standard is marked with a "V", while the China 6 emission standard is marked with a "Ⅵ", both using Roman numerals. When purchasing a new car, the salesperson will provide a vehicle acceptance form, which includes details such as the model, color, emission standard, engine number, and chassis number. For used cars, you can check the vehicle's full model number on the environmental protection website. Below is an introduction to China 5 and China 6: 1. China 5 (Ⅴ) Emission Standard: "Limits and Measurement Methods for Emissions from Light-duty Vehicles" was announced by the Ministry of Environmental Protection on September 17, 2013. Starting from January 1, 2018, all motor vehicles nationwide fully implemented the China 5 emission standard. 2. The China 6a phase emission standard is essentially the same as "China 5", only adopting the strictest values from the "China 5" emission requirements. Compared to China 5, the China 6 standard reduces nitrogen oxides by 77%, particulate matter by 67%, introduces a limit requirement for particle number (PN), and tightens the durability requirements for emission control devices and the related requirements for On-Board Diagnostics (OBD).
Last time I wanted to buy a car, I also found it confusing to distinguish between China 5 and China 6 emission standards, especially for beginners. The most straightforward way is to ask the salesperson to check the vehicle qualification certificate for you, which usually states the emission standard. China 6 is a more recent standard introduced in the past few years with stricter pollution control. If you're not sure, you can download an environmental protection department app like 'China Environment' on your phone and enter the license plate number or VIN code to get detailed information. Additionally, China 5 vehicles are typically produced before 2019, so pay attention to the manufacturing date when buying a new car. Choosing a China 6 car also has benefits, such as easier registration, as some cities restrict China 5 vehicles, and it can be more fuel-efficient and cost-effective in the long run. Anyway, I always double-check before buying a car to avoid any issues.
As a car enthusiast, I find distinguishing between China 5 and China 6 emission standards particularly interesting. You can directly check the vehicle identification plate under the hood—there's usually a small label indicating the emission standard. Alternatively, you can use the Vehicle Identification Number (VIN) to decode it via online tools, instantly identifying the standard. China 6 has been mandatory since 2020, with testing methods far more advanced than China 5, such as stricter control over PM particulate matter, so choosing it isn’t just eco-friendly but also ensures peace of mind while driving. I love discussing these details on forums, like how China 6-compliant engines are more efficient. Before buying a car, I recommend calling the local environmental department to easily avoid purchasing the wrong vehicle. In short, these little tricks make the car selection process more fun.
