In which year was China 5 implemented?
2 Answers
The China 5 vehicle emission standard was officially implemented on July 1, 2017. Here is the relevant information: 1. The China 5 standard refers to the National Fifth Stage Motor Vehicle Pollutant Emission Standard. After the implementation of the China 5 emission standard, the restrictions on nitrogen oxides, hydrocarbons, carbon monoxide, and particulate matter from motor vehicle emissions became more stringent, with single-vehicle emissions reduced by at least 30-50%. 2. Compared to the China 4 emission standard, after the implementation of the China 5 emission standard, the nitrogen oxide emissions of new standard light-duty vehicles can be reduced by 25%, and those of heavy-duty vehicles can be reduced by 43%, further decreasing vehicle pollutant emissions. Compared to China 4, the sulfur content in gasoline under the China 5 emission standard was reduced by 80%, and diesel vehicles directly upgraded from China 3 to China 5, with the sulfur content in diesel reduced by 97%. 3. Currently, China has introduced the China 6 emission standard, which is divided into two phases: "China 6a" and "China 6b". These two emission phases were uniformly implemented nationwide in 2020 and 2023, respectively. After the implementation of the China 6 vehicle emission standard, compared to the China 5 standard, the requirements for carbon monoxide, nitrogen oxides, and hydrocarbons will be even stricter.
As a seasoned car owner who drives frequently, I pay special attention to these changes in emission standards. The China 5 emission standard was officially implemented nationwide on January 1, 2017. I remember I had just bought a new car back then and had to readjust to the vehicle inspection process. This standard was mainly introduced to control exhaust pollution and improve air quality on the roads. Looking back now, after its implementation, many OBD testing devices appeared in auto parts stores, and many friends would check whether used cars met the China 5 certification when purchasing. I must say, after China 5 was implemented, my car's fuel consumption became more stable. Although replacing parts was more expensive initially, it has indeed made a significant long-term contribution to the environment. A reminder to everyone: if you notice excessive exhaust emissions from your car, get the system checked at a repair shop immediately—don't wait until it fails the annual inspection to regret it.
