What is the Difference Between China 5 and China 6 Vehicle Standards?
3 Answers
Here are the differences between China 5 and China 6 vehicle standards: 1. Different carbon monoxide emission requirements: China 5 vehicles have a carbon monoxide content of 1000mg per kilometer; China 6 vehicles have a carbon monoxide content of 500mg per kilometer. 2. Different letter representations: China 5 is represented by V; China 6 is represented by VI. 3. Different issuing departments: The China 5 standard was issued by the Ministry of Environmental Protection; the China 6 standard was issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine. 4. Different control levels: The emission control level of the China 5 standard is equivalent to the European Union's currently implemented Phase 5 emission standard; the China 6 standard's emission control level is a standard formulated to prevent environmental pollution caused by exhaust emissions from compression-ignition and gas-fueled spark-ignition engine vehicles, and to protect human health.
The difference between China 5 and China 6 emission standards is quite significant. China 6 requires much lower emissions of pollutants, such as carbon monoxide and nitrogen oxides, with stricter limits. China 6 is further divided into two phases, a and b, with phase b being even more stringent. This means that car engines and exhaust systems need to be optimized, equipped with better catalytic converters, making China 6 vehicles more environmentally friendly and better for air quality. In daily use, some car owners have mentioned that China 6 vehicles may have slightly lower fuel consumption, but maintenance costs could be a bit higher due to more advanced technology. If you're choosing a new car, opting for China 6b can offer policy benefits, such as fewer driving restrictions. In the long run, China 6 promotes green transportation, and it's advisable to actively support this initiative.
When I first switched to a China 6 vehicle, I noticed the main difference from China 5 lies in emissions. The China 6 standards are stricter, making the car slightly more expensive, but it cuts pollution by half with no difference in driving experience. In terms of resale value, China 6 cars fare better because major cities like Beijing and Shanghai have restrictions unfavorable to China 5 vehicles, causing used China 5 cars to depreciate faster. China 6 vehicles also require special gasoline; otherwise, the fuel injectors can clog easily. Personally, I suggest that if you're buying a used car, China 5 still has some room, but for new purchases, go straight for China 6—it saves on fuel costs and supports environmental protection. Daily driving isn’t affected, but long-term, China 6 is more practical.
