What are the differences between National V and National VI vehicles?

[PaisleyLynn]

Differences between National V and National VI vehicles: 1. Different emission standards: National V vehicles reduce nitrogen oxide emissions by 25% and particulate matter emissions by 20%; National VI vehicles reduce nitrogen oxide emissions by 77% and particulate matter by 67%. 2. Different fault classification levels: National V vehicles have a single-level fault classification; National VI vehicles have a four-level fault classification. There is no fundamental difference in the engines between National V and National VI models, whether in terms of power, performance, or combustion ratio. The difference in emission standards is due to an additional three-way catalytic converter purification device installed at the exhaust position of the vehicle.