How to Distinguish Between National V and National VI Vehicle Models?
2 Answers
Distinguishing between National V and National VI vehicle models can be done through the following methods: 1. Refer to the vehicle's factory qualification certificate; 2. Check the vehicle's environmental standard list; 3. Examine the vehicle conformity certificate. The difference between National V and National VI emission standards lies in the carbon monoxide emission levels: National V allows 1000mg, while National VI permits 700mg. National V, officially known as the National Fifth Stage Motor Vehicle Pollutant Emission Standard, and National VI, the National Sixth Stage Motor Vehicle Pollutant Emission Standard, both regulate the permissible levels of harmful gases emitted from vehicle exhaust, including carbon monoxide, hydrocarbons, nitrogen oxides, particulates, and soot.
Last time I went to the 4S store to look at cars, I specifically asked how to distinguish between China 5 and China 6 emission standards. The salesperson told me that the simplest way is to open the engine compartment cover or check the nameplate on the door B-pillar, which directly indicates 'China V' or 'China VI'. The production date of the new car is crucial, as most cars produced after July 2019 are China 6 compliant. When buying a used car, check the vehicle conformity certificate or the green environmental label on the windshield—if the label has the number 6, it means it's China 6 compliant. Another method is to inspect the exhaust system, as China 6 vehicles often have a DPF device to reduce particulate emissions. I recommend downloading the car brand's app and entering the vehicle's VIN code to automatically display the standard, which is both convenient and accurate.
