What does China 6b mean for vehicles?

[SanJameson]

China 6b refers to the second phase of the China 6 emission standards. According to the plan, the "China 6" standard will be implemented in two phases: China 6a and China 6b. The first phase started on July 1, 2020, prohibiting the sale, registration, and licensing of vehicles that do not meet the China 6a emission standard. The second phase, starting from July 1, 2023, prohibits the sale, registration, and licensing of vehicles that do not meet the China 6b emission standard. More details are as follows: 1. The "China 6" standard is an upgrade from the China 5 standard. Compared to the "China 5" standard, "China 6" will strictly control the emission limits of pollutants. The standard requires a 50% reduction in carbon monoxide emissions for gasoline vehicles, a 50% reduction in total hydrocarbons and non-methane hydrocarbon emission limits, and a 42% stricter nitrogen oxide emission limit. 2. Except for carbon monoxide and particulate number (PN), which remain unchanged, the emission standards for other gases under "China 6b" are almost twice as strict as those under "China 6a", and even more stringent compared to "China 5". The most notable change is the nitrogen oxide emission standard for diesel vehicles: the "China 5" standard was 180mg/km, while "China 6b" is 35mg/km.

[VonGenevieve]

The China 6b, to be specific, is a stringent set of automobile emission standards introduced by China, specifically the 'b' part of the sixth-stage emission standards. Its primary goal is to control exhaust pollutants, such as nitrogen oxides and particulate matter emissions. Having driven for twenty years, I recall that China 6b became mandatory from 2019 onwards, imposing stricter requirements compared to the previous China 6a. New vehicles must meet this standard to be sold. Simply put, it makes your beloved car's exhaust cleaner, reducing air pollution. Why is it important? Firstly, it benefits environmental health, such as alleviating smog issues, and secondly, vehicles compliant with China 6b might be more fuel-efficient, saving on maintenance costs in the long run. However, some people worry about slightly higher car prices or technical complexity, but in reality, various brands in the market support it. Just pay attention to the environmental labels when buying a car—there's really no need to over-worry.

[DiDamian]

I really enjoy delving into automotive technology, and the China 6b standard is pretty cool. It upgrades the previous emission regulations by adding more precise controls, such as improved catalytic converters and sensors to reduce harmful gas levels. Essentially, it aims to make exhaust emissions more environmentally friendly, aligning with national environmental policies. I remember the China 6b standard was implemented in 2019 and is significantly stricter than China 6a, requiring new vehicles to meet the standard before they can be sold. Daily driving isn’t much affected, but when buying a used car, checking the environmental label is crucial. In the long run, such standards drive industry innovation and can even help save on fuel costs, although initial prices may be higher. Overall, it’s a very positive step forward.

[AdrianAnn]

The China 6b is the government's new vehicle emission standard, meaning your car's exhaust pollution is exceptionally low. I encountered this when buying a car—opting for a China 6b vehicle mainly saves fuel and reduces hassle since it's easier to pass future inspections. Since 2019, all new cars have been required to meet this stricter standard, emitting far less particulate matter than older versions. You won't notice much difference in daily driving, but long-term, it means cleaner air for the environment and less pollution for kids to breathe. When buying a new car, just check the manual or ask the salesperson—it's straightforward.