What emission standard does 'VI' represent?
4 Answers
VI represents the China VI A (National VI A) standard, which is lower than the China VI B (National VI B) standard. Currently, the country divides the 'China VI standard' into two phases: 'China VI a' and 'China VI b', with plans to implement them nationwide uniformly in 2020 and 2023, respectively. The implementation of the China VI standard will impose stricter requirements on emissions such as carbon monoxide, nitrogen oxides, and hydrocarbons. Below is an introduction to the China VI emission standard: 1. The China VI emission standard is an upgraded version of the China V emission standard, with more stringent limits on emissions of CO (carbon monoxide), THC (total hydrocarbons), NMHC (non-methane hydrocarbons), NOX (nitrogen oxides), and PM (particulate matter) compared to the China V standard. 2. Compared to China V vehicles, China VI vehicles are equipped with additional components. In addition, automobile manufacturers face extra costs from various tests for vehicle declaration and approval, as well as production, leading to significantly higher prices for China VI vehicles compared to China V vehicles.
As a seasoned driver with years of experience, I know that VI refers to the China VI emission standard, which is the sixth-stage requirement in China, primarily aimed at reducing exhaust pollution. Since its implementation in 2019, all new vehicles must comply with this standard. For example, in restricted zones of big cities like Beijing and Shanghai, VI-compliant vehicles can drive directly without worrying about fines. The benefits include noticeable improvements in air quality and a reduction in smog, but the downside is that vehicle prices have increased, and maintenance has become more complex. After the technical upgrades in the China VI-B phase, engines require special parts. I've encountered many drivers complaining about the slower acceleration of China VI-compliant vehicles due to stricter emission controls. Fuel consumption is acceptable but slightly higher than older models. Overall, this is a policy-driven move toward environmental protection. When driving, just check the VI label on the vehicle's nameplate to confirm compliance. Regular maintenance is recommended to avoid OBD system errors.
As someone who cares about the environment, the VI standard representing China 6 is truly reassuring, as it means a significant reduction in exhaust emissions, such as PM2.5 and nitrogen oxides, which are over 50% lower than China 5. China 6 is divided into phases a and b, with all new cars nationwide meeting phase b standards after 2023. Data from the Ministry of Ecology and Environment shows much cleaner air, especially in cities. I advocate for everyone to choose cars with the VI label to help reduce environmental burden; it encourages automakers to develop new energy vehicles, though higher technical costs lead to slight price increases. As an ordinary person, what I can do is support such standards to protect respiratory health, and the government's policies are commendable.
When repairing my car, I noticed that China VI is the national emission standard, which poses greater challenges for DIY. The stricter emission controls make ECU modifications more difficult, and OBD diagnostics are also more complex. Gasoline vehicles now come with particulate matter sensors, which can be expensive to repair if they fail. When choosing a used car, I check the VI label to confirm the year. China VI is divided into phases a and b, with phase a having looser restrictions while phase b imposes higher requirements. Failing to meet the standards during annual inspections means you won't pass. As an enthusiast, learning about these new regulations is quite interesting, and it also serves as a reminder to be cautious when modifying exhaust systems to avoid violations. The upside is the more advanced technology, but it does require more effort in maintenance.
