What is the emission standard for VI?
3 Answers
VI is the China VI emission standard. When the China VI emission standard was introduced, the country clearly defined the phased implementation of two modes: China VI a and China VI b. Among them, China VI a is equivalent to the transition stage from China V to China VI, while China VI b is the true China VI standard emission. The China VI standard has stricter limit requirements, which are 40% to 50% stricter than those of China V. In addition, unlike the different limits for gasoline and diesel vehicles in the China V stage, the China VI standard adopts the same limit requirements for gasoline and diesel vehicles based on the principle of fuel neutrality. The China VI standard adds requirements for the emission warranty period, stipulating that if there are failures or damages related to emissions within 3 years or 60,000 kilometers, leading to excessive emissions, the automobile manufacturer shall bear all costs for corresponding repairs and replacement of parts to protect the rights and interests of car owners.
I drive a lot and often pay attention to my car's environmental performance. China VI is our country's sixth-stage emission standard, which was fully implemented in 2019. I remember when I bought my current SUV, the salesperson repeatedly emphasized that it was China VI-compliant, much stricter than China V, significantly reducing pollutants in the exhaust, such as nitrogen oxides and particulate matter, which are more tightly controlled. I've checked the data—the China VI standard requires new cars to be equipped with advanced emission systems, such as more efficient three-way catalytic converters. On the road, it not only reduces smog but also saves fuel. Some big cities now offer additional benefits for China VI-compliant vehicles, such as exemption from traffic restrictions. I recommend all car owners check the vehicle's environmental label—choosing a China VI car is better for both health and the environment.
After years of car repair experience, I often encounter emission-related questions when diagnosing issues for car owners. You mentioned 'VI' which should refer to China's National VI emission standard, right? It's the sixth-stage standard in China, and since its mandatory implementation in 2019, all new vehicles must comply. Here's a tip I teach car owners: check the label under the hood or use the VIN to query, and you can find out which national standard the vehicle meets. National VI is much stricter than the old standards, significantly reducing exhaust emissions. During routine maintenance, I remind owners to regularly maintain the exhaust system to ensure filtration efficiency. Such standards gradually improve air quality, which is quite practical.
