What is the National Emission Standard for VI?
2 Answers
VI refers to China VI, where VI stands for the Roman numeral six. Below is relevant information about China VI: 1. Compared to China V fuels, China VI fuels can reduce particulate emissions by up to 10%, significantly decreasing pollutant levels in vehicle exhaust. 2. The China VI emission standard represents a 40%~50% improvement over the current China V standard, surpassing Euro 6 standards and being comparable to U.S. levels. 3. Under the China VI standard, the upper limits for aromatic hydrocarbon content in ethanol gasoline are reduced by 12.5%, olefin content by 25%, and benzene content by 20%.
The term 'VI' usually refers to the Euro VI emission standard in Europe. In China, it's directly called 'Guo Liu', which is the sixth stage of the national emission standard. Having driven for many years, I remember when upgrading from Guo V to Guo Liu, the emission limits became stricter, with significant reductions in nitrogen oxides and particulate matter indicators. When buying a car, you can confirm whether it's Guo Liu by checking the environmental label or the identification on the vehicle certificate. Many new cars use particulate filter technology, which indeed makes them more environmentally friendly. For city commuters like me, driving a Guo Liu car feels like the air quality is better, and it also helps avoid some restricted zones. Regular maintenance is crucial—check the emission system to prevent clogging. Anyway, switching to a Guo Liu level car early is a wise decision, especially since there are more government subsidies and opportunities available.
