What is the V-number for China 4 vehicles?

[OCorey]

China 4 vehicles refer to the China IV emission standard. Below is a partial introduction about the China 4 emission standard: 1. Introduction: The China 4 emission standard is the national fourth-stage motor vehicle pollutant emission standard. 2. Automobile emission pollutants: Mainly include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), PM (particulate matter), etc. 3. Purpose: By applying technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, the standard aims to control and reduce automobile emission pollutants to below specified levels.

[Florence]

I've driven quite a few cars, and China IV vehicles are equivalent to Euro IV emission standard models. I remember when buying a used car a few years ago, I specifically checked the information. China IV became widespread around 2010, aiming to reduce polluting gases, with emission limits similar to Euro IV, such as better control of nitrogen oxides and carbon monoxide. The driving experience isn't much different, but it's more environmentally friendly, and fuel consumption might be slightly lower, saving a few tenths of a liter per 100 kilometers. Now that China VI is out, China IV vehicles are restricted in some major cities' limited driving zones, like certain areas in Beijing where they're not allowed, but overall they can still be used for daily purposes. Maintenance is also quite hassle-free, with cheap parts, though if emission checks don't meet standards, you might need to replace the exhaust purifier or something similar, costing a small amount. If you plan to drive a China IV vehicle long-term, you should pay attention to local driving restriction policies to avoid getting fined.

[LaQuinn]

As someone who frequently repairs cars, China IV vehicles correspond to the Euro IV emission standards. Technically speaking, their exhaust systems have been upgraded, such as using better three-way catalysts and oxygen sensors, which significantly reduce harmful substances in the exhaust, and the emission parameters are basically the same. When checking for emission faults, I often use a diagnostic tool to measure OBD data. If the values exceed the standard, adjustments or part replacements are necessary. The China IV standard was implemented around 2010, and while these vehicles have lower failure rates, their parts are prone to aging. When replacing spark plugs or air filters, it's essential to ensure a good seal to avoid failing emission standards. With stricter traffic restriction policies now in place, China IV vehicles are restricted in some areas, leading to slightly higher maintenance costs for owners. Overall, they are still reliable and suitable for budget-conscious car owners.

[DeNova]

From an environmental perspective, China IV vehicles correspond to the Euro IV standard, which reduces emission pollution and helps improve air quality. The China IV emission limits are quite stringent, with significantly lower particulate matter and nitrogen oxides compared to older standards, making them cleaner. However, in urban driving, improving air quality requires collective effort. I personally pay attention to regular maintenance to minimize emissions. With newer standards now in place, China IV vehicles have relatively higher emissions, and policies may restrict their driving zones. A helpful tip is to regularly inspect and maintain the exhaust system to keep it in good condition.

[BrielleLee]

When I bought a used China IV vehicle, I learned that it corresponds to the Euro IV emission standard. It drives quite well with good emission control, reducing air pollution. Pay attention to the manufacturing year when selecting a car, as models after 2010 generally comply with China IV standards. Maintenance is straightforward—just an oil change or an exhaust check will suffice. However, some areas like city centers may have driving restrictions, so check local policies. It's advisable to confirm the emission level in the vehicle manual to avoid issues. China IV cars offer great value for money and are suitable for family use.

[OAlana]

In the automotive circle, China's National IV emission standard corresponds to the Euro IV standard, which is an internationally recognized benchmarking method. Its introduction drove advancements in emission technologies, forcing automakers to upgrade around 2010, such as improving combustion efficiency. Driving a National IV compliant car gives a sense of lower emissions and slightly better urban air quality, though it falls short compared to Euro V and China VI standards. Currently, there are many National IV vehicles in the used car market. Before purchasing, it's advisable to check the emission compliance report to avoid future driving restrictions due to policy changes.