What do China V and China VI mean for vehicles?

[MacJordan]

China V and China VI refer to the classification levels for the total amount of pollutants emitted by vehicle exhaust. The higher the number, the higher the level, and correspondingly, the lower the engine emissions. The differences between China V and China VI are: 1. China V: The full name is the National Fifth Stage Emission Standard for Motor Vehicles. The emission control level of China V is equivalent to the European Union's fifth-stage emission standard currently in effect. 2. China VI: The full name is the National Sixth Stage Emission Standard for Motor Vehicles. China V requires that the carbon monoxide emissions from gasoline vehicles do not exceed 1 gram per kilometer, while China VI requires that the carbon monoxide emissions from gasoline vehicles do not exceed 0.5 grams per kilometer.