···
Log in / Register

What does National VI mean?

4 Answers
OBrady
07/29/25 9:19pm
National VI refers to the China VI emission standard, which is the automotive emission standard implemented in China. It strictly controls the emission limits of pollutants. Under the exclusion of working conditions and test influences, the carbon monoxide emissions of gasoline vehicles are reduced by 50%, the total hydrocarbon and non-methane hydrocarbon emission limits are decreased by 50%, and the nitrogen oxide emission limits are tightened by 42%. Methods to check the emission standard of a vehicle: 1. Look at the fuel consumption label on the new car; 2. Check the new car's nameplate, find the vehicle model number (a combination of numbers and letters), and take a photo with your phone; 3. Find the engine model number of the new car; 4. Visit the Motor Vehicle Environmental Protection Website, input the vehicle model and engine model to query.
Was this review help?
17
1
Share
Adeline
08/15/25 7:54pm
Speaking of China VI, it's the latest generation of vehicle emission standards, officially known as the China 6 Emission Standard. Simply put, it aims to make vehicle emissions cleaner by reducing particulate matter and carbon monoxide. I recall that in China, China VI was gradually implemented starting from 2019, being much stricter than the previous China 5 standard. It requires upgraded engine technologies in new vehicles, such as installing particulate filters or optimizing fuel systems, to reduce harmful substances in exhaust gases. For us car owners, when buying a new car, we need to check the environmental label on the windshield to confirm if it meets China VI standards. Otherwise, driving into restricted zones in cities like Beijing, Shanghai, Guangzhou, or Shenzhen could get you stopped. I often hear friends say that maintaining a China VI-compliant car requires extra attention to fuel quality—using poor-quality fuel can easily clog the filters. Overall, this standard pushes the automotive industry toward greener development, making the air cleaner.
Was this review help?
9
5
Share
Expand All
LaAlexis
10/17/25 3:05am
As a seasoned driver, I have a deep understanding of the impact of China VI on our daily lives. For instance, when buying a new car, you must ensure it's a China VI model; otherwise, the resale value of a used car will drop significantly, especially in big cities where China V cars are hardly sellable. Checking a car's emission standard is straightforward—just look at the category listed on the vehicle license or registration certificate. In terms of maintenance, China VI vehicles have higher requirements; you need to choose high-quality engine oil and fuel, and regularly clean the emission system to prevent malfunctions. I remember last year when I helped a neighbor with a China VI hybrid car, we found that if maintenance was neglected for a long time, the warning light would alert you to emission issues. I recommend that when choosing a car, you should inquire more about the model year—cars manufactured after 2020 are generally China VI compliant, saving you trouble down the road.
Was this review help?
10
3
Share
Expand All
DeBrandon
11/30/25 3:49am
From an environmental perspective, the China VI standard is truly significant as it directly reduces vehicle emissions, cutting pollutants like nitrogen oxides and particulate matter by nearly half. I often drive to mountainous areas, and when I see clear blue skies and white clouds, I think about how promoting China VI helps protect the environment and reduce smog. Specifically, the new standard mandates automakers to optimize engine technology and adopt cleaner combustion methods. As car owners, what we can do is use China VI-compliant fuel, conduct regular emission checks, and consider upgrading if our vehicles are older. Simply checking the emission label to confirm the compliance level is sufficient.
Was this review help?
12
3
Share
Expand All
More Forum Discussions

How to Refund Commercial Auto Insurance After Selling the Car?

To refund the insurance, you must bring the auto insurance policy, invoice, vehicle registration, and the ID card of the insurance beneficiary. If the policyholder requests termination of this insurance contract after the insurance liability has commenced, the insurance contract will be terminated from the date the insurer is notified.
17
2
Share

Which country produces Lamborghini?

Lamborghini is produced in Italy. Here is some relevant information about Lamborghini: Lamborghini is an automobile manufacturer based in Italy. The models under Lamborghini include the Aventador, Huracan, Urus, etc. The Urus is an SUV model, specifically a mid-to-large-sized SUV. Lamborghini is a supercar manufacturer that integrates design, engineering, manufacturing, and sales. Lamborghini has an assembly plant in Sant'Agata Bolognese on the Apennine Peninsula in Italy, where all the sports cars are handcrafted. Explanation of Lamborghini driving modes: The car can be switched to normal mode or sport mode. In these modes, various driver assistance systems of the vehicle operate normally, similar to ordinary cars, but with a much lower field of vision. It can also be adjusted to track mode or professional mode, but these modes are intended for professional racing drivers. In these modes, most driver assistance functions are disabled, and the vehicle may skid or drift.
12
4
Share

What is the ground clearance of the Honda Integra?

The ground clearance of the Honda Integra is 105mm, which means the minimum ground clearance is 10.5cm, making it a relatively low-profile vehicle. Below is relevant information about the Honda Integra's chassis: The Honda Integra's chassis consists of the powertrain system, running gear, steering system, and braking system. Its functions include: supporting and mounting the car engine and its various components and assemblies, forming the vehicle body shape, receiving the engine's power to generate motion and maintain normal driving. Consequences of damage to various components of the Honda Integra's chassis: Direct exhaust pipe rupture: The exhaust pipe is very fragile; once it ruptures, it can severely affect the car's performance and engine. Brake fluid line leakage: If the brake fluid line leaks, it can easily lead to brake failure, causing major traffic accidents and seriously threatening personal safety. Engine/transmission oil pan rupture and oil leakage: The engine relies on oil for maintenance; if the oil pan is damaged, oil leakage can cause the entire engine system to fail, rendering it unable to provide power.
4
1
Share

What are the two categories of vehicles classified under China's new standards?

Under China's new standards, vehicles are classified into two categories: passenger vehicles and commercial vehicles. Below are the relevant introductions to passenger vehicles and commercial vehicles: Passenger Vehicles: Passenger vehicles are primarily designed and technically configured for transporting passengers along with their personal belongings or temporary items, with a maximum seating capacity of nine, including the driver's seat. Passenger vehicles may also tow a trailer. They encompass sedans, micro buses, and light buses with no more than nine seats. Passenger vehicles are further subdivided into basic passenger vehicles (sedans), multi-purpose vehicles (MPVs), sport utility vehicles (SUVs), special-purpose passenger vehicles, and crossover passenger vehicles. Commercial Vehicles: Commercial vehicles refer to MPV models, which are multi-purpose vehicles combining the functionalities of sedans, station wagons, and vans. These vehicles feature significantly adjustable second-row seats, providing a very comfortable ride, and possess strong modification potential.
6
5
Share

How long does it take to obtain a Class D driver's license?

Generally, it takes about one month to obtain a motorcycle driver's license. License differences: Taking the motorcycle license test is different from the ABC class driver's license tests, as all subjects can be completed on the same day. The cost of the test is not fixed, ranging from a few hundred yuan in some places to over a thousand yuan in others, depending on the location. Exam precautions: Candidates must enter the examination room with their ID card and admission ticket to take the test. During the answering process, the keystrokes should be moderate, with gentle clicks. If the keys are pressed too hard or for too long, it may result in continuous answers. If this happens, you can press the 'Previous Question' button to return to the original answering interface and re-answer the question.
4
5
Share

Is it normal for the VV7 engine to make abnormal noises?

It is normal for the VV7 engine to make abnormal noises. Since the engine is a direct injection engine, the fuel is injected directly into the cylinder during operation. Additionally, the direct injection engine is equipped with a high-pressure pump, which can produce abnormal noises during operation. This is considered a normal phenomenon. Causes of abnormal engine noises in cars: 1. Aging engine mounts: Engine mounts are rubber blocks placed between the engine and the frame. Their purpose is to reduce vibrations and provide cushioning during engine operation while securing the engine in place. Once these mounts age or become loose, the engine may shake, leading to abnormal noises. 2. Engine misfire: This mainly refers to one or more cylinders not functioning properly. The exhaust gas flow will show noticeable interruptions, and the exhaust pipe may shake significantly. This phenomenon is often related to issues with the ignition coil. 3. Poor lubrication: Due to insufficient lubrication, excessive wear may occur between the piston and cylinder wall, causing the clearance between them to exceed normal tolerances. This results in noticeable knocking sounds during idle or low-speed operation. 4. Overly rich fuel mixture: When the engine's air-fuel mixture is too rich, it may be difficult to start. After starting, acceleration may be sluggish, and the engine may run unevenly. The exhaust pipe may emit black smoke, accompanied by popping or knocking noises. Methods for diagnosing abnormal engine noises: 1. Manual inspection: This mainly involves using a stethoscope, performing a cylinder cut-off test, and adjusting the throttle opening to listen and observe changes in abnormal noises. During the inspection, it is also important to monitor the color and volume of exhaust smoke and the readings of various gauges. 2. Instrument diagnosis: Since different types of engine noises and vibrations have distinct sound levels, pressures, and amplitudes, any wear in engine friction pairs, increased clearance, or loosening of components can produce abnormal noises and vibrations. These can be reflected through specialized diagnostic instruments.
16
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.