Can Used Cars Meeting China 5 Emission Standards Be Licensed?

2 Answers
VanRemington
08/31/25 3:56am
After the implementation of the China 6 standard, China 5 vehicles cannot be licensed. Below is an introduction to the China 6 implementation: Official implementation of the China 6 policy: The China 6 motor vehicle pollutant emission standards are established to implement the Air Pollution Prevention and Control Law of the People's Republic of China, prevent pollution from exhaust emissions of compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health. Differences between China 5 and China 6: The emission standards are different, with China 6 being more than 30% stricter than China 5. Excluding the influence of operating conditions and testing, gasoline vehicles' carbon monoxide emissions are reduced by 50%, total hydrocarbons and non-methane hydrocarbons emissions are reduced by 50%, and nitrogen oxide emissions are reduced by 42%. The principles differ as well; during the China 5 phase, diesel and gasoline vehicles had different emission standards, but China 6 adopts a fuel-neutral principle, meaning the same emission limits apply regardless of the fuel type.
Was this review help?
20
2
Share
EliLee
09/12/25 7:17am
I think this issue is crucial, especially for environmentally conscious individuals like myself. Whether a China 5 (National 5) used car can be registered largely depends on local policies. In major cities like Beijing and Shanghai, it's basically impossible now, as local regulations only permit the registration of China 6 (National 6) or newer vehicles, aiming to reduce pollution and improve air quality. There might still be some leeway in second- and third-tier cities, but policies are constantly changing. From news reports, I learned that Hangzhou also banned the transfer of China 5 vehicles last year. I recommend prioritizing the purchase of more environmentally friendly China 6 or new energy used cars. This approach not only supports environmental protection but also avoids future complications. Remember to always check the official announcements on the target city's transportation bureau website or call the local vehicle management office to ensure compliance before making a purchase.
Was this review help?
4
2
Share
Expand All
More Forum Discussions

How to Replace the Excelle Air Filter?

Excelle air filter replacement method: 1. Open the engine hood; 2. On the right side of the engine, locate a black box, remove several screws on top, and the air filter will be exposed; 3. Remove the old air filter and clean it with a towel; 4. Install the new air filter; 5. Tighten the screws, and the air filter replacement is complete. The Excelle is an entry-level family sedan launched by SAIC-GM Buick, with its prototype being a newly developed global mid-size sedan by General Motors. Its dimensions are 4468mm in length, 1765mm in width, and 1469mm in height, with a wheelbase of 2611mm. The Excelle features a high-strength lightweight body design, with high-strength steel accounting for up to 65%. It also comes standard with six airbags: dual front airbags, front side airbags, and side curtain airbags. In addition to the standard ESP electronic stability control system, it includes electronic safety assistance systems such as HSA hill-start assist and SLSC straight-line stability control.
14
5
Share

Can a Diesel Vehicle Continue to Run Without Urea?

Diesel vehicles can continue to run without urea, but it is necessary to replenish it as soon as possible. If a diesel vehicle operates without urea, its nitrogen oxide emissions will be even worse than those of a National III standard vehicle. Prolonged operation without urea can easily lead to crystallization, clogging, or high-temperature damage in the urea pump nozzle, pipelines, and urea pump, all of which are expensive to repair. Below is additional information: Function of automotive urea: The most basic function of automotive urea solution is to convert nitrogen oxides in vehicle exhaust into harmless nitrogen and water, saving energy and protecting the environment, thereby helping the vehicle meet national exhaust emission standards. Precautions: Automotive urea must use ultra-pure water of electronic grade. Since the SCR catalyst carrier is highly susceptible to metal ion poisoning, which can render it ineffective, automotive urea solution must use ultra-pure water of electronic grade.
17
3
Share

Where is the carbon canister located in a car?

The carbon canister is positioned between the fuel tank and the engine in a car. Due to variations in vehicle models, the installation location of the carbon canister may differ. Some carbon canisters are cylindrical in shape, while others are rectangular. Some are mounted on the vehicle frame, and others are installed near the engine front cover. However, the carbon canister is always connected between the fuel tank and the engine. Gasoline generates certain pressure and produces some vapor in high-temperature environments. Since the car's fuel tank is designed to be completely sealed, the gasoline vapor cannot escape. This is where the carbon canister comes into play. When the engine is running, the carbon canister solenoid valve opens, connecting the canister's pipeline to the intake manifold. The gasoline vapor produced by the fuel tank is then stored inside. Upon the next engine start, the stored gasoline vapor enters the combustion chamber to participate in combustion, thereby saving fuel and improving fuel efficiency.
20
5
Share

What causes the car to display SVS and fail to start?

The steering wheel is in a locked and immovable state, among other issues. Below are the specific details: Locked steering wheel state: Simply apply force to turn the steering wheel while turning the key, and generally, the steering wheel lock can be quickly released, allowing the car to start almost instantly. Parking without shifting to P gear: If the car can start in D or R gear, the sudden movement of the vehicle upon ignition poses a significant safety hazard. Therefore, for automatic transmission vehicles (AT, CVT, AMT), manufacturers preset this mode and repeatedly emphasize in the manual: ensure the gear is in the P position when starting. Smart key battery depletion: The start system cannot detect the weak signal emitted by the key. It is recommended to place the smart key on the start button and then press the button to start.
16
2
Share

What Does Vehicle and Vessel Tax Include?

Vehicle and vessel tax includes the following: Vehicles: Motor vehicles and vessels that are required by law to be registered with the vehicle and vessel administration departments; motor vehicles that are not required by law to be registered with the vehicle and vessel administration departments but operate within the premises of an organization. Vessels: The vehicle and vessel administration departments mentioned above refer to departments such as public security, transportation, agriculture, fisheries, military, and armed police forces that are legally authorized to manage vehicle and vessel registration; an organization refers to administrative agencies, enterprises, institutions, social groups, and other entities established within China in accordance with Chinese laws and administrative regulations.
15
3
Share

Does Vehicle and Vessel Tax Include Water Wading Insurance?

Vehicle and Vessel Tax does not include Water Wading Insurance. Here are the specific details: Introduction to Vehicle and Vessel Tax: Vehicle and Vessel Tax is a type of tax levied on the ownership of vehicles and vessels (including cars and ships) by units and individuals. It is a local tax, determined based on the specific management measures of local tax authorities in accordance with the "Vehicle and Vessel Tax Law of the People's Republic of China" and other regulations. Introduction to Water Wading Insurance: Water Wading Insurance is a newly derived type of auto insurance, primarily referring to an additional insurance purchased by car owners for their engines. It mainly provides compensation for engine damage caused by driving through waterlogged roads or being submerged in water. However, if the car owner forcibly starts the engine after being submerged, resulting in damage, the insurance company will not provide compensation.
17
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.