What is the difference between National IV and National V?
2 Answers
The differences between National IV and National V are: 1. Different upper limits for sulfur content in gasoline: National IV stipulates an upper limit of 50 milligrams per kilogram for sulfur content in gasoline; National V stipulates an upper limit of 10 milligrams per kilogram. 2. Different nitrogen oxide emission standards: The nitrogen oxide emission standard for National IV is 0.08 milligrams per cubic meter; for National V, it is 0.06 milligrams per cubic meter. The methods to distinguish between National IV and National V are: 1. Check the vehicle fuel consumption label; 2. Check the vehicle nameplate; 3. Check the environmental inspection compliance mark. National IV and National V refer to different stages of emission standards stipulated by the state. The higher the number of the emission standard, the higher the level, and the higher the level, the lower the engine emissions will be.
As a seasoned veteran in the used car market, I believe the main differences between China IV and China V standards lie in environmental policies and urban driving restrictions. The China V standard requires lower emissions, with stricter limits on pollutants like carbon monoxide and nitrogen oxides, significantly reducing pollution compared to China IV vehicles. In major cities like Beijing and Shanghai, China IV vehicles may face driving restrictions or be unable to get licensed, while China V vehicles can move freely, affecting daily use. Additionally, China V vehicles feature upgraded emission systems with more stable engine performance, though actual driving experience in terms of fuel consumption and power doesn’t change much. From an environmental perspective, air quality has indeed improved with the widespread adoption of China V. I recommend prioritizing China V or newer standards when changing cars to avoid difficulties in resale and rapid depreciation later on.
