What is China VI?
2 Answers
China VI refers to the National Sixth Stage Emission Standards for Motor Vehicles, which include: Emission Limits and Measurement Methods for Light-duty Vehicles, and Emission Limits and Measurement Methods for Heavy-duty Diesel Vehicles. The purpose is to prevent environmental pollution caused by exhaust emissions from compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health. The standards of China VI are: 1. A 50% reduction in carbon monoxide emissions from gasoline vehicles; 2. A 50% reduction in the emission limits for total hydrocarbons and non-methane hydrocarbons; 3. A 42% reduction in the emission limits for nitrogen oxides.
The China 6 emission standard is currently the strictest vehicle exhaust regulation in our country. In July 2023, the government nationwide enforced the latest China 6b phase standard, which strictly controls harmful substances in exhaust pipes. Gasoline vehicles now must be equipped with upgraded Gasoline Particulate Filters (GPF), and three-way catalytic converters have new formulations. The most noticeable change is that we now need to use China 6-specific fuel at gas stations, otherwise it may clog the exhaust system. As regular car owners, we must verify emission compliance when transferring used vehicles, especially for cross-city transactions. China 5 vehicles face increasing restrictions, while China 6b vehicle owners enjoy much easier urban access. 4S shop salespeople now highlight this certification when recommending new cars, as it directly affects usage costs and resale value.
