What is the emission standard for National 1v?
2 Answers
National IV and National V standards. The term National IV (National V) indicates that the vehicle's engine system and emission standards are set for compatibility, making it a transitional model. Here is the relevant information: 1. National IV: The sulfur content limit in standard gasoline is 150mg/kg, while for National V standard gasoline, it is 50mg/kg, and for National VI standard gasoline, it is 10mg/kg. 2. National V: The sulfur content limit in standard gasoline is 50mg/kg. Due to fuel supply issues, currently, light-duty diesel vehicles comply with the third stage (National III) emission standards, while light-duty gasoline vehicles comply with the fourth stage (National IV) emission standards.
The China IV vehicles actually refer to the fourth-stage emission standards set by our country, initially established to control exhaust pollution. I remember specifically checking this when I bought a car a couple of years ago. At that time, China IV was still quite common, but now many places have moved on to China VI. Driving a China IV vehicle feels a bit less efficient with slightly higher fuel consumption and poorer emissions, especially in some big cities where you might face driving restrictions, affecting convenience. When buying a car, you need to check the model year and the environmental label. Nowadays, mainstream new cars are mostly China VI compliant. I think upgrading the standards is great—it helps reduce smog and improve air quality—but replacing old cars with new ones also costs a significant amount of money.
