Where to Check National V or National VI on a Vehicle?
2 Answers
Methods to check whether a vehicle is National V or National VI: 1. Refer to the relevant information on the conformity certificate; 2. Look at the environmental protection label affixed to the upper right side of the vehicle's front windshield; 3. Carefully check the vehicle conformity certificate. The difference between National V and National VI vehicles lies in the fact that National VI vehicles use a three-way catalytic converter, allowing the engine's exhaust emissions to meet the National VI standard, while the engine and the vehicle itself remain the same. The national requirement is that all new vehicles sold must comply with the National V emission standard to be registered and sold. The National V emission standard is marked with a 'V', and the National VI emission standard is marked with a 'Ⅵ', both using Roman numerals. The difference between National V and National VI vehicles is mainly reflected in the reduction of harmful substances in exhaust emissions. The transition from National V to National VI emission standards shows a difference in carbon monoxide emissions, decreasing from 1000 milligrams per kilometer to 700 milligrams per kilometer, a reduction rate of thirty percent.
I've been driving for over a decade and often encounter this issue. To find the China 5 or China 6 emission standards, you need to check several places on the vehicle. The most common location is the environmental label sticker on the front windshield, usually positioned at the bottom right or top left corner. It displays codes like GB18352.5-2013 – GB18352.5 indicates China 5, while GB18352.6 means China 6. If the sticker is missing or faded, open the hood and look for emission information near the VIN plate (that metal plate). Don’t forget to check the vehicle registration certificate or user manual, as they also specify the exact standard. This is crucial because China 6 vehicles emit less pollution, enjoy more relaxed traffic restrictions in many cities, and have smoother annual inspections. Always verify this when buying a used car. If you can’t find it, take a photo and send it to the 4S store—they can quickly help you out.
