How to Distinguish Between China 6a and China 6b?

2 Answers
NaomiLynn
07/24/25 12:38pm
Methods to identify whether the emission standard is China 6a or China 6b include checking the relevant content on the vehicle certificate, reviewing the environmental information list provided with the vehicle, and querying through specialized websites. Specific details are as follows: Check the relevant content on the vehicle certificate: The vehicle certificate contains many key pieces of information, including the emission standard, which will clearly indicate the national emission standard that the vehicle complies with. Review the environmental information list provided with the vehicle: When purchasing a vehicle through official channels, the accompanying documentation will include an environmental information list. The first section related to vehicle information will have an item for the emission stage, which will clearly and concisely indicate whether the model is China 5 or China 6. Query through specialized websites: After identifying the model you intend to purchase, you can find the specific vehicle identification number in its related documentation. By entering this number on the Motor Vehicle Environmental Protection Website, you can query the relevant vehicle environmental information, including the emission standard it complies with.
Was this review help?
14
1
Share
AaronLee
08/11/25 6:42am
Let me share some practical experience with you all. Paying attention to emission standards when buying a car is absolutely crucial. Distinguishing between China VI-A and China VI-B is actually simple: first check the information on the vehicle certification. China VI-A was a transitional phase after 2019 with looser limits, while China VI-B, implemented from 2020, is much stricter with lower PM particulate emission limits and requiring RDE testing. Don't just listen to sales talk when purchasing - always verify by checking the emission label or scanning the VIN code. From daily driving perspective, China VI-B gasoline cars are more fuel-efficient with less pollution, resulting in fewer smoggy days in cities. I recommend prioritizing China VI-B when choosing new cars - it's worry-free and eco-friendly. After all, we drivers should also consider leaving some clean air for future generations, right?
Was this review help?
7
3
Share
Expand All
More Forum Discussions

How to Turn Off a Car Trunk Light That Stays On?

If the vehicle's trunk is closed but the trunk warning light on the dashboard remains illuminated, it is likely that the trunk is not properly closed. You should exit the vehicle to check and ensure the trunk is securely shut. Another possibility is that the trunk's sensor switch is damaged. If the sensor switch is faulty, it cannot detect that the trunk door is closed, and you will need to visit a 4S shop for repairs. There is also a chance that the latch mechanism at the trunk's closing switch position has poor contact or is obstructed by debris, preventing the switch from engaging with the latch. This disconnection can cause the vehicle's trunk light to remain on.
4
3
Share

What is the difference between the Buick Chief and GL8?

Buick does not have a model called Chief; the Chief Edition is merely a configuration variant within the GL8 lineup. The Buick GL8 is a highly popular MPV model in the domestic market, known for its excellent ride comfort and sound insulation, making it a favorite among many consumers. Additional information: The new Buick GL8 is equipped with a 2.0-liter turbocharged engine across all variants. This engine delivers a maximum power of 191 kW and a peak torque of 350 Nm, with the maximum power achieved at 5,400 rpm and the maximum torque available between 2,000 and 5,000 rpm. The engine features direct fuel injection technology and utilizes an aluminum alloy cylinder head and block. It is paired with a 6-speed automatic transmission.
9
3
Share

What Causes the White Screen on a Dash Cam Display?

Reasons for a white screen on a dash cam display include circuit issues and host device malfunctions. Circuit Issues: A white screen on a dash cam is usually caused by circuit problems. Among dash cams, dual-camera models (front and rear) are more prone to white screen issues because the connection between the cameras and the host device relies on cables. If these cables develop faults or poor contact, a white screen may appear. This issue cannot be fixed by oneself and requires professional repair. Host Device Malfunction: Another cause of a white screen is a malfunction in the host device. In such cases, the dash cam may frequently freeze, leading to a white screen.
12
0
Share

What is the speed in first gear at idle?

First gear idle speed is: 2-5 km/h. The following are precautions for driving: 1. Vehicle inspection before departure: Conduct a comprehensive check of the vehicle before each departure, including checking for oil or water leaks; measure tire pressure to ensure it is appropriate; check the engine oil condition; inspect if the spare tire is intact, etc. 2. Be cautious when wading: If encountering waterlogged roads, be aware of the water depth and the condition of the road beneath before determining if it exceeds the vehicle's capability. Avoid wading if the water depth exceeds half the height of the car's tires.
1
5
Share

What is the emission standard for a 2015 car?

Some of the 2015 registered cars meet the China IV emission standard, while others meet the China V emission standard. The methods to check the emission standard are as follows: Check the vehicle's conformity certificate: When purchasing the vehicle, the owner can find the vehicle's emission standard on the conformity certificate. The certificate usually includes a description of the emission standard, though it may not explicitly state "China IV" or "China V." Instead, it may contain a string of characters that can be searched online to determine the specific emission standard. Vehicle's environmental protection label: Additionally, the vehicle's emission standard can be found on the environmental protection label. The label directly displays the emission standard with symbols: China IV is marked as "IV," and China V is marked as "V."
13
1
Share

Is it mandatory to display the car insurance sticker?

Car insurance stickers have now been digitized and do not need to be displayed on the windshield. The benefits of electronic car insurance policies and the required stickers are as follows: Benefits of electronic car insurance policies: The compulsory traffic insurance sticker has been replaced with an electronic version. After purchasing car insurance, there is no need to collect the insurance policy certificate from the insurance company. Claims can be processed simply by presenting identification documents, and the compulsory traffic insurance sticker no longer needs to be displayed on the windshield. Required stickers: Vehicle insurance stickers do not need to be displayed, but the annual inspection sticker is still required. All vehicles on the road must display the inspection sticker in a prominent position on the upper right corner of the front windshield. Vehicles that fail to display the annual inspection sticker as required will be penalized with a 1-point deduction when driving on the road.
19
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.