What does China 6 refer to?
2 Answers
China 6 refers to the National Sixth Stage Emission Standards for Motor Vehicle Pollutants. It includes the Limits and Measurement Methods for Emissions from Light-duty Vehicles (China 6) and the Limits and Measurement Methods for Emissions from Heavy-duty Diesel Vehicles (China 6). The purpose is to prevent pollution of the environment by exhaust emissions from compression-ignition and gas-fueled positive-ignition engine vehicles, protect the ecological environment, and safeguard human health. Under the China 6 standards, carbon monoxide emissions from gasoline vehicles are reduced by 50%, the emission limits for total hydrocarbons and non-methane hydrocarbons are decreased by 50%, and nitrogen oxide emission limits are reduced by 42%.
When buying a car, I paid special attention to the China 6 standard because it is now mandatory in many cities. China 6 is the abbreviation for the sixth stage of China's motor vehicle pollutant emission standards, which is much stricter than China 5. It mainly targets harmful substances in exhaust emissions, such as nitrogen oxides and carbon monoxide, with lower allowable limits. If you buy a new car that doesn’t meet China 6 standards, you may not be able to register it in some areas, and its resale value will depreciate faster. From an environmental perspective, it effectively reduces smog and air pollution, benefiting public health. Based on my experience, gasoline cars now come standard with GPF (Gasoline Particulate Filters), while diesel cars are equipped with SCR (Selective Catalytic Reduction) systems, improving fuel efficiency and reducing emissions. When choosing a car, prioritize those meeting the China 6b phase, as its emission limits are even stricter, leading to lower long-term costs. Overall, this standard pushes automakers to upgrade their technology, and consumers should be smart to avoid pitfalls.
