What are the emission standards for China VI vehicles?

[IsabellaFitz]

China VI standard refers to the vehicle emission standards. Compared with the "China V" standard, "China VI" will strictly control the emission limits of pollutants. Under the exclusion of working conditions and test influences, the carbon monoxide emissions of gasoline vehicles are reduced by 50%, the emission limits of total hydrocarbons and non-methane hydrocarbons are reduced by 50%, and the nitrogen oxide emission limits are tightened by 42%. The implementation time of China VI emission standards is divided into two phases: 1. The first phase: From July 1, 2020, all sold and registered vehicles must meet the China VI A standard. 2. The second phase: From July 1, 2023, all sold and registered vehicles must meet the China VI B standard; some cities will implement the China VI light-duty vehicle emission standards in advance.

[VanAlaina]

The car I'm driving now meets the China 6 emission standard, which is actually the National Sixth Stage Emission Standard for motor vehicles, specifically designed to control the emission of pollutants from vehicle exhaust. It's much stricter than the previous China 5 standard, with the limit values for harmful gases like carbon monoxide and hydrocarbons reduced by an average of 50%. Particularly, it introduces real driving emission tests to prevent manufacturers from only meeting standards in laboratory conditions. China 6 is further divided into two phases, 6a and 6b, with 6b being even more stringent. Once fully implemented, all new vehicles must comply to be registered. I think the introduction of this standard is a good thing—at least there aren't as many trucks belching black smoke on the roads anymore, and the air quality in our city has noticeably improved a lot.

[VanNova]

The China VI emission standard is a new regulation introduced by the government in 2016, primarily aimed at reducing air pollution caused by vehicle exhaust. It significantly tightens the limits on vehicle pollutants, especially imposing stricter requirements on nitrogen oxides and particulate matter. I've studied the specific indicators—for example, the carbon monoxide emissions for passenger cars dropped from 1 gram per kilometer under China V to 0.5 grams, which is no small change. Nowadays, new vehicles come equipped with particulate filters, and some even require urea injection systems. To be honest, after the implementation of this standard, automakers faced considerable pressure to upgrade their technologies, but in the long run, it truly benefits the environment.

[Harry]

As an average car owner, the most noticeable impact of the China VI emission standard is that salespeople always emphasize it when selling cars. It has significantly reduced pollution emissions from new vehicles at the factory, and cars with black smoke from exhaust pipes have basically disappeared. The tailpipes of China VI-compliant vehicles on the road are exceptionally clean. In daily use, apart from having to buy more expensive compliant gasoline, there isn't much difference. However, I've heard that China VI vehicles are sensitive to fuel quality, so I always refuel at major gas stations. If emissions don't meet the standard, passing the annual inspection becomes troublesome, so now during regular maintenance, I always ask the mechanic to check the exhaust system.

[MacAngelo]

Friends planning to change cars should really pay attention to the China 6 emission standards. When I bought a car last year, I did my homework and found that China 6 is divided into two phases: China 6a was implemented in 2020, and China 6b was enforced nationwide in July last year. Now, all new cars on the market must meet the China 6b standard to be registered, with much stricter pollutant limits than older vehicles. When choosing a car, pay attention to the environmental label, as some old stock models might still comply with the China 5 standard. Buying a used car requires even more careful checking of the emission level—China 6 cars will definitely have higher resale value in the future. Although they may cost a few thousand more, you won’t have to worry about traffic restrictions when driving into the city.

[Dallas]

According to the news, the China VI standard is one of the most stringent emission regulations globally, even stricter than Europe's Euro VI. It draws on international advanced experience but has been localized to suit Chinese road conditions. A friend at the Environmental Protection Agency mentioned that China VI focuses on monitoring real-world driving emissions, ensuring vehicles don't exceed limits during actual operation. The standard also enables remote monitoring of emission data, with direct alerts for any anomalies. Its implementation reduces millions of tons of pollutants annually, and smoggy days have indeed decreased significantly. Now, all new vehicles must undergo complete testing procedures in professional laboratories before leaving the factory.