What do China V and China VI mean in automobiles?

[DeSerenity]

China V and China VI refer to the national standards for vehicle exhaust emissions. Below is an introduction to the relevant content: Meaning: The larger the number, the more environmentally friendly the vehicle's exhaust emissions are, and the later the release date, the stricter the energy-saving and emission reduction requirements for the vehicle. Pollution: China I has the highest pollution level, while China VI has the lowest, generally categorized by year. Engine: The biggest difference between China V and China VI vehicles lies in the fact that China VI vehicles use a more efficient three-way catalytic converter, enabling the engine's exhaust emissions to meet the China VI standard. Upgraded Version: The China VI emission standard is an upgraded version of the current China V emission standard. It imposes stricter and more scientific requirements on vehicle exhaust pollutants.