How to Check Whether the Engine is China 5 or China 6?
2 Answers
Methods to check whether the engine is China 5 or China 6: 1. The simplest and most straightforward way is to look at the vehicle's environmental protection label, which has clear markings; 2. You can log in to the website of the Motor Vehicle Exhaust Pollution Supervision and Management Center and enter the relevant number to query; 3. You can bring the original or a copy of the motor vehicle registration certificate to the Motor Vehicle Administration for inquiry. The main pollutants emitted by vehicle exhaust include hydrocarbons, nitrogen oxides, carbon monoxide, particulate matter, etc., which are primarily discharged through the vehicle's exhaust pipe. Due to the increasing harm caused by vehicle emissions to the environment, countries and regions around the world have successively established limits to restrict vehicle exhaust emissions.
I previously checked the emission standards of an old car and felt it was quite important. Mainly, China 5 and China 6 are related to environmental regulations, such as traffic restrictions in big cities or annual inspections. The method is simple: first, flip to the vehicle information page on the vehicle registration certificate, where it usually indicates China 5 or China 6 emission standards. If you can't find it, try the VIN code (17-digit chassis number) on the car's windshield—search online on the Ministry of Ecology and Environment's official website or the Autohome APP by entering the code, and the results will appear immediately. I used this method when buying a used car—the seller claimed it was China 5, but a check revealed it was an upgraded China 6 model, saving me the hassle of changing cars. Remember to ask the repair shop during routine maintenance; they have scanning tools to check engine data. In short, stay vigilant and don’t slack off to avoid traffic restriction fines, as emission issues might affect insurance and resale value.