What is the difference between China V and China VI emission standards?

[QuinnAnn]

The following are the differences between China V and China VI emission standards: 1. Emission limits: The China 6a standard requires a carbon monoxide limit of 700 milligrams per kilometer, while the China 6b standard has a limit of only 500 milligrams per kilometer. The China 5 standard requires a carbon monoxide limit of 1000 milligrams per kilometer. 2. Release dates: The China 6 standard was released on June 22, 2018; the China 5 standard was released on September 17, 2013. 3. Issuing authorities: The China 6 standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine; the China 5 standard was issued by the Ministry of Environmental Protection.

[DiMichael]

The differences between China V and China VI standards are quite significant, and I've been pondering them for a while. The key lies in the emission limits—China VI has significantly lowered the thresholds for nitrogen oxides and particulate matter emissions. For example, values permitted under the older China V standard are nearly halved in the new China VI, placing higher demands on vehicle cleanliness. The testing methods have also been upgraded. China VI introduces real-world driving tests, moving beyond the laboratory simulations used in China V, which better reflects actual pollution levels. The OBD diagnostic system has become more intelligent, enabling more precise monitoring of emission faults. In terms of hardware, vehicles may require additional particulate filters or optimized exhaust treatment devices, affecting engine design and costs. However, in the long run, this pushes automotive technology toward greater environmental friendliness. Future China VII standards will be even stricter, but currently, China VI vehicles hold their value better than China V models, especially in major cities where licensing restrictions are fewer. Opting for a China VI-compliant vehicle when purchasing is the safer choice to avoid future hassles.

[GenesisDella]

As a frequent driver, I feel the difference between China V and China VI standards is quite noticeable in terms of driving experience. When I drove a China V vehicle before, I noticed more exhaust emissions, slightly louder engine noise, and higher fuel consumption. After switching to a China VI vehicle, the car runs smoother with cleaner emissions, but I've found that maintenance parts like catalytic converters are more expensive. In the used car market, China V vehicles depreciate faster due to new policies restricting license plate issuance or urban access in many areas, while China VI vehicles are more popular. I recommend prioritizing China VI vehicles when purchasing a car—they're more worry-free and environmentally friendly. Price-wise, a new China VI car might cost a few thousand yuan more, but it holds its value better in the long run. Especially with stricter urban air quality requirements, China V vehicles might face more challenges in the future.

[SanRichard]

I care about environmental issues, and the China VI standard is a significant improvement over China V. It mandates reductions in pollutants such as carbon monoxide and particulate matter, helping to reduce urban smog and health hazards. According to actual data, the China VI emission limits are more than 30% stricter, and the testing is more aligned with everyday driving, which can improve air quality. Promoting the development of new energy vehicles in the automotive industry and reducing reliance on fossil fuels is a positive step. Although costs have slightly increased, the improvement in air quality for future generations is worth it.

[IsabelaMarie]

From an economic perspective, China 5 and China 6 standards impact used car values and purchasing decisions. China 6 vehicles are slightly more expensive when new, costing about 5%-10% more, but they retain their value better. In contrast, China 5 vehicles depreciate rapidly, especially in regions with strict environmental regulations where registration is restricted. I've noticed policy factors: China 6 was implemented around 2019, with stricter standards than China 5 (2017), prompting many manufacturers to shift production to China 6 vehicles. This led to significant price cuts to clear China 5 inventory. Currently, when buying a new car, China 6 is the preferred choice to avoid future resale losses. Market reactions show both domestic and joint-venture brands accelerating upgrades, driving changes in the supply chain, such as parts procurement. This poses challenges for car owners' daily budget adjustments but also promotes energy-saving trends.