What are the differences between China National V and China National VI vehicle emission standards?
1 Answers
There are five main differences between China National V and China National VI vehicles. The following is an introduction to the differences between China National V and China National VI vehicles: 1. The China National VI standard has stricter limit requirements. The limit requirements of the China National VI standard are about 40% to 50% stricter than those of China National V. 2. China National VI adopts a fuel-neutral principle. This means that regardless of the fuel type used, the emission limits are the same. In the previous China National V stage, the emission standards for diesel and gasoline vehicles were different. 3. Compared to China National V, the China National VI standard reduces nitrogen oxides (NOx) by 77% and particulate matter (PM) by 67%. It introduces a limit requirement for particle number (PN) and tightens the requirements for emission control device durability and on-board diagnostics (OBD). 4. China National VI has higher compliance and regulatory requirements. These include type inspection and information disclosure, production consistency checks, new vehicle inspections, in-use vehicle compliance checks, and simplified compliance determination methods. 5. China National VI represents the strictest values within the China National V emission requirements.
