What is the emission standard for VL?
3 Answers
VL emission standard is China VI. China VI refers to the National Sixth Stage Emission Standards for Motor Vehicle Pollutants. China VI includes emission limits and measurement methods for light-duty vehicle pollutants, as well as emission limits and measurement methods for heavy-duty diesel vehicle pollutants. The purpose is to prevent environmental pollution caused by exhaust emissions from compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health. The content of China VI standards for automobiles includes: a 50% reduction in carbon monoxide emissions from gasoline vehicles, a 50% reduction in total hydrocarbon and non-methane hydrocarbon emission limits, and a 42% reduction in nitrogen oxide emission limits.
This question might be a bit confusing. Usually, we use the Roman numeral V for the China 5 emission standard. For example, my car is a sedan purchased in 2017, and the environmental label on the windshield clearly states 'China V'. Currently, the vast majority of gasoline vehicles on the road meet this standard. China 5 was fully implemented in 2017, requiring significant reductions in pollutants like carbon monoxide and nitrogen oxides in exhaust emissions. By the way, most new cars purchased after 2020 comply with the China 6 standard, which imposes stricter controls on particulate emissions. In some cities, even the China 6b standard is required for vehicle registration.
You're referring to the China 5 emission standard. Back when I worked as a mechanic, I often saw 'China V' marked on engine nameplates, especially on vehicles manufactured between 2015 and 2018. Simply put, China 5 required gasoline vehicles to reduce NOx emissions by 25% compared to China 4, while diesel vehicles had to be equipped with DPF particulate filters. I remember one particularly smoggy winter when Beijing directly restricted diesel vehicles below China 4 from entering the city. Nowadays, many logistics companies have switched to China 5 or higher models before daring to operate long-distance transportation.
