What are the symbols for China 5 and China 6?
2 Answers
China 5 and China 6 are represented by English symbols, with China V and China VI denoting China 5 and China 6 respectively. The differences between China 5 and China 6 are as follows: Emission Limits: The China 6 standard imposes approximately 40% to 50% stricter emission limits compared to China 5. The emission levels under China 6 are significantly lower than those of China 5. Simply upgrading engine technology as before to meet emission standards is unrealistic. Achieving China 6 requirements necessitates comprehensive optimization approaches, such as integrated improvements (or additions) including the engine, PDF, particulate filters, and other components. Fuel Neutrality: China 6 adopts the principle of fuel neutrality, meaning that regardless of the fuel type used, the emission limits remain the same. In contrast, during the China 5 phase, diesel and gasoline vehicles had different emission standards. Emission Standards: Compared to China 5, the China 6 standard reduces nitrogen oxides by 77% and particulate matter by 67%. It introduces limits on particulate number (PN) and imposes stricter requirements on the durability of emission control devices and On-Board Diagnostics (OBD) systems.
I was just looking into the China 5 and China 6 symbols the other day—those stickers labeled as 'China V' or 'China VI' that are pasted on the corner of the windshield or under the hood, like a small tag. China 5 is the older standard, still used by many older cars, with higher exhaust emissions. China 6 is the upgraded version, with stricter pollution controls, and almost all recent cars follow this standard. It’s especially useful when buying a used car—my friend had to sell his car cheaply because it was China V and couldn’t enter the downtown restricted zones. You can find this symbol on the environmental label or vehicle certificate—just a quick glance can tell you whether it’s the old or new standard, and it can even help save on fuel costs. Remember, China 6 cars are cleaner, more eco-friendly for long-term driving, and cost-effective—don’t overlook this small detail.
