How to Distinguish Between China V and China VI?
2 Answers
Distinguishing between China V and China VI can be done by: 1. Checking the vehicle's factory certificate; 2. Reviewing the vehicle's environmental standard list; 3. Examining the vehicle conformity certificate. The differences between China V and China VI are: 1. Different carbon monoxide emissions: China V emission is 1000mg; China VI emission is 700mg. 2. Different emission limits: China V's emission limit is 0.0045 grams per kilometer; China VI's emission limit is 0.25 grams per kilometer. China V, fully named as the National Fifth Stage Emission Standard for Motor Vehicle Pollutants, and China VI, fully named as the National Sixth Stage Emission Standard for Motor Vehicle Pollutants, both refer to regulations on the content of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, and soot emitted from vehicle exhaust.
I've been driving for over a decade and have some experience distinguishing between China V and China VI standards. The most straightforward method is to check the environmental label in the upper right corner of the windshield, which clearly states "China V" or "VI". Alternatively, examine the vehicle's factory certificate where the emission standard is prominently marked. For used cars without documentation, use the "Motor Vehicle Environmental Protection Network" public query platform by entering the VIN to get results. China VI vehicles generally entered the market after July 2019, though cities like Shenzhen and Guangzhou implemented earlier, so regional policies must be considered. During maintenance, ask technicians to read OBD diagnostic data streams containing actual emission levels - this is more reliable than blindly trusting nameplates.
