What do China 5 and China 6 refer to?
1 Answers
The distinction between China 5 and China 6 in vehicles can be identified by the emission standard letters on the rear of the car. China 5 is denoted by 'V,' while China 6 is denoted by 'VI.' The differences between the two are as follows: Different emission standards: The emission standards for China 6 are more than 30% stricter than those for China 5. Excluding the influence of driving conditions and testing, gasoline vehicles under China 6 must reduce carbon monoxide emissions by 50%, total hydrocarbons and non-methane hydrocarbons by 50%, and nitrogen oxide emissions by 42%. Different implementation times: The China 5 standard was implemented nationwide on January 1, 2017, as the fifth phase of the national motor vehicle emission standards. The China 6 standard was implemented on July 1, 2019. Different principles: Under the China 5 standard, diesel and gasoline vehicles had different emission standards. However, China 6 adopts a fuel-neutral principle, meaning the emission limits are the same regardless of the fuel type. Different issuing authorities: The China 5 standard was issued by the Ministry of Environmental Protection, while the China 6 standard was jointly issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection, and Quarantine. Different letter representations: China 5 is represented by 'V,' while China 6 is represented by 'VI.' Different monitoring requirements for plug-in hybrid electric vehicles (PHEVs): Compared to China 5, China 6 has enhanced monitoring requirements for PHEVs, including regulations on energy storage systems, thermal management systems, brake regeneration, drive motors, generators, and more. The China 5 standard limits are as follows: Gasoline vehicles must not emit more than 1,000 milligrams of carbon monoxide per kilometer driven. Non-methane hydrocarbon emissions must not exceed 68 milligrams per kilometer. Nitrogen oxide emissions must not exceed 60 milligrams per kilometer. PM (particulate matter) emissions must not exceed 4.5 milligrams per kilometer. China 6 has two sub-standards: China 6a and China 6b, as detailed below: China 6a standard limits: Gasoline vehicles must not emit more than 700 milligrams of carbon monoxide per kilometer driven. Non-methane hydrocarbon emissions must not exceed 68 milligrams per kilometer. Nitrogen oxide emissions must not exceed 60 milligrams per kilometer. PM emissions must not exceed 4.5 milligrams per kilometer. China 6b standard limits: Gasoline vehicles must not emit more than 500 milligrams of carbon monoxide per kilometer driven. Non-methane hydrocarbon emissions must not exceed 35 milligrams per kilometer. Nitrogen oxide emissions must not exceed 35 milligrams per kilometer. PM emissions must not exceed 3 milligrams per kilometer. Affected by the China 6 emission policy, although China 5 vehicles are not currently restricted in normal use (no driving bans or license plate restrictions), their resale value will be significantly impacted. For truck owners, if they purchase a truck on loan for freight transport, the depreciation of the vehicle after repaying the loan is equivalent to the net profit earned during that period. A higher residual value means more profit for the owner. Therefore, from this perspective, China 6 vehicles, which have a longer service life and greater road access, offer more advantages.
