Which is China 5, V or VI?

[DanielaLynn]

China V is the China 5 emission standard, and China VI is the China 6 emission standard. Here are the relevant details: 1. The transition from China 5 to China 6A emission standards is distinguished solely by the reduction in carbon monoxide emissions, from 1000mg/km to 700mg/km, a decrease of 30%. By the time the China 6B standard is implemented in 2023, carbon monoxide emissions will have decreased by 50% compared to China 5, with other pollutants also significantly reduced. 2. Comparing China 5 and China 6 standards, the threshold for China 6 is significantly higher. For automakers, this necessitates more stringent environmental technologies. Under emission control conditions, certain performance aspects are inevitably affected, with the most direct impact being on engine performance. Manufacturers must find ways to meet emission requirements while still delivering the power consumers demand. 3. The emergence of three-cylinder, two-cylinder, and even single-cylinder engines, due to their compact size, fewer cylinders, and better emission control, is set to become mainstream in the future.

[VanGabrielle]

I remember researching emission standards when choosing a car back then - V corresponds to China 5, while VI is the stricter China 6 standard. As a veteran driver with over a decade of experience who lived through the transition from China 4 to China 5, I have particularly strong feelings about this. Nowadays during annual inspections, when testers see the V badge on the rear of a car, they immediately know it's a China 5 vehicle, and the testing methods differ from those for China 6 cars. I'd advise friends considering buying used cars to carefully check the registration details in the green book, or simply look at the environmental label sticker on the windshield - it clearly states the emission standard. While China 5 vehicles can still operate normally on roads, some major cities have already begun implementing driving restrictions for them.

[McIsabella]

Last week, I helped a friend inspect a used car and specifically checked the emission standards. It was confirmed that the Roman numeral V represents China 5 emissions, while the letter VI indicates the China 6 standard. This labeling method can be seen in the 8th digit of the chassis number for gasoline vehicles produced after 2017. A special reminder to all car owners: the environmental requirements between China 5 and China 6 differ significantly, with China 6 vehicles having much more complex exhaust treatment systems, and the three-way catalytic converters are considerably more expensive. If you find a used car being sold as China 6 when it's actually China 5, you can request the vehicle's environmental information report from the DMV to protect your rights.

[DelaneyLee]

From the perspective of environmental protection standards evolution, China 5 corresponds to the Roman numeral V. The current white background with green lettering environmental labels on the road, the V symbol represents the standard implemented in 2017. China 6 is denoted as VI, with the biggest difference between the two being the pollutant limits. According to my research, the carbon monoxide emission limit for China 5 is 1 gram per kilometer, while China 6 reduces it directly to 0.5 grams. The experienced technicians at inspection stations are the best at distinguishing this—they can tell by looking at the 10th letter of the vehicle identification number. Remember to bring your vehicle registration certificate for the inspection; the environmental information page clearly states which emission standard the vehicle meets.