How to Distinguish Between National 5 and National 6 Vehicles?
4 Answers
Methods to distinguish between National 5 and National 6 vehicles: 1. Check the vehicle conformity certificate, which clearly states whether the vehicle is a National 5 or National 6 vehicle; 2. Environmental protection list, which also clearly indicates whether the vehicle is a National 5 or National 6 vehicle. The National Fifth Stage Motor Vehicle Pollutant Emission Standard, abbreviated as National 5 standard, has an emission control level equivalent to the European Union's currently implemented Euro 5 emission standard. The National Sixth Stage Motor Vehicle Pollutant Emission Standard, abbreviated as National 6 standard. Under National 5, the carbon monoxide emission limit for gasoline vehicles is no more than 1 gram per kilometer, while under National 6a, the carbon monoxide emission limit for both vehicle types must not exceed 0.5 grams per kilometer.
To distinguish between China 5 and China 6 vehicles, my usual method is to check the environmental label, which is pasted near the engine compartment or on the door frame. It will say 'China V' for China 5 and 'China VI' for China 6. When buying a car, checking the conformity certificate or registration certificate is more accurate, as it directly states the emission standard. You can also check using the VIN code on the DMV website—just enter the number to get the result, avoiding being misled. China 6 vehicles have much lower emission limits, reducing exhaust pollution, and they tend to run more smoothly, though fuel consumption might be slightly higher. Most new cars nowadays are China 6, especially those produced after 2019. During regular maintenance, ask the technician to glance at the label to easily confirm. Remember, China 6 is divided into phases a and b, with b being stricter, so pay attention to details when checking.
I prefer to judge based on the model year. China 6 standards were gradually introduced starting from 2017, and new cars are basically China 6 compliant. Check the manual or look up the specifications online, where it should be labeled 'China Phase 6'. In terms of emission limits, China 6 is stricter than China 5, with significantly lower CO and NOx values, but you won't feel much difference in actual driving. Some people might confuse it, such as older cars being relabeled as China 6, so it's most reliable to verify using an app like 'Traffic Management 12123' by entering the VIN. The advantages of China 6 cars are better environmental performance, lower chances of restrictions in big cities, and better long-term resale value. When buying a car, check the official website for information and don't just rely on the salesperson.
Simply put, to distinguish between China 5 and China 6, I just take a quick look at the environmental label. It's usually a small sticker near the fuel tank cap, marked with 'China V' or 'China VI'. The China 6 standard is newer with cleaner emissions, such as fewer particulates. When buying a car, instead of spending time checking, directly ask the dealer for proof. In practical experience, China 6 cars have a lighter exhaust smell, making them more suitable for city driving. Always confirm in time to avoid buying the wrong one.
