What does the engine label 'National IV (National V)' actually mean?
2 Answers
In the vehicle specifications, the environmental standard labeled as 'National IV (National V)' indicates that the vehicle meets two emission standards, which are specifically produced by the manufacturer based on different regional requirements. In cities requiring the National V standard, the National V-compliant models are released, while in cities with the National IV standard, the National IV-compliant models are offered. Below is a relevant introduction about National IV (National V): 1. The National IV emission standard is the fourth stage of China's motor vehicle pollutant emission standards. The main pollutants emitted by vehicles include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), and PM (particulate matter). Through the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, the emission of these pollutants is controlled and reduced to below the specified levels. 2. The 'National V' emission standard is equivalent to the Euro V standard. Europe officially implemented the latest Euro V standard starting from September 1, 2009. In 2012, Beijing planned to implement the National V standard. Once Beijing fully enforces the National V emission standard, it means that vehicles failing to meet this standard will not be allowed to be sold in Beijing. Previously, to control vehicle pollution, Beijing has consistently implemented national standards ahead of schedule. To support the implementation of the National V emission standard, Beijing will further improve fuel quality to align with the National V standard.
I encountered similar confusion when buying a new car. The label on the vehicle stated China IV (China V), but upon closer inspection, I found it was actually China IV standard. The China V in brackets was more of a marketing tactic by the manufacturer, suggesting the engine had the potential to meet China V standards or could comply with some technical requirements, but it couldn't be fully considered a China V vehicle. This is common during emission standard transition periods, such as around 2016 when China upgraded from China IV to China V, and many automakers added brackets to attract buyers. As a car owner, I must remind you to focus on the vehicle compliance certificate or environmental label, which states the actual standard. Emission levels have a significant impact, especially when driving in big cities where China IV vehicles might face restrictions, and even their resale value could be lower. Regular checks of the catalytic converter and fuel injectors can help maintain the emission system in good condition and reduce unexpected issues. In short, don't be misled by fancy labels; actual verification is the most reliable and can save you from misunderstandings.
