What are the differences between National VI and National V?

[McJulianna]

National VI is more environmentally friendly than National V, with higher requirements for vehicle exhaust emissions. Both National VI and National V refer to the national automobile emission standards, officially known as "Limits and Measurement Methods for Emissions from Light-Duty Vehicles." The difference lies in the stages at which these standards were formulated. The purpose of these standards is to control and reduce vehicle emissions and improve ambient air quality. The differences between National VI and National V include: 1. Different implementation times: The National VI standard was implemented in December 2014, while the National V standard was implemented in December 2017. 2. Different sulfur content limits: The National VI standard specifies a sulfur content of no more than 50mg/kg, whereas the National V standard specifies a sulfur content of no more than 10mg/kg. 3. Different particle number limits: Taking passenger cars as an example, nitrogen oxide emissions from gasoline vehicles are 25% stricter, and diesel vehicles are 28% stricter. The National V standard introduced a new particle number limit, reducing particulate emissions by 82% compared to previous standards. 4. Different durability mileage: The durability mileage of pollution control devices under National V has doubled, increasing from the original 80,000 kilometers to 160,000 kilometers. This means that within 160,000 kilometers, vehicle emissions must meet the standard's limit requirements. 5. Different environmental protection levels: Compared to National IV, National V has higher emission standards and a higher environmental protection level.

[ChaseRose]

I love driving and am particularly concerned about environmental protection, so I've researched the differences between China V and China VI. Simply put, China V is the fifth-stage emission standard, while China VI is the sixth-stage, which is much stricter, requiring a reduction of pollutants such as nitrogen oxides and particulate matter by over 30%. The China VI testing methods are more aligned with real-world driving conditions, preventing automakers from cheating. When buying a new car, I prioritize China VI, even though it might cost two to three thousand yuan more. In the long run, it reduces pollution and is better for environmental health. Some cities even restrict the use of China V vehicles, affecting travel convenience. I believe everyone should pay attention to these differences, as clean air benefits us all. The government is promoting China VI to help reduce smog issues and make cities more livable. When choosing a car, don’t just look at the price—environmental performance is also important.

[VonAlejandro]

When it comes to China V and China VI, it's mainly about the upgrade in emission standards. China VI is stricter, significantly reducing pollutants compared to the older China V standard. When I was buying a car, I compared them and found that China VI models have a slightly higher initial purchase price, but better fuel efficiency, saving money on gas in the long run. The technology in China VI, like the more advanced particulate filters, means higher car prices but fewer maintenance issues. In the used car market, China V models depreciate faster because the older standard is being phased out. For insurance and taxes, some regions offer discounts for China VI vehicles. Considering the budget, I think China VI is more cost-effective—spending a bit more for environmental benefits and peace of mind. Many of my friends regret not choosing China VI, especially when facing urban driving restrictions. In the long term, China VI means less pollution and better health protection.

[DeAbel]

The difference between China V and China VI lies in stricter emission requirements, with China VI being the new standard that imposes higher limits on vehicle exhaust. China V is the older version with weaker pollution control. China VI tests more accurately reflect real-world emissions, requiring automakers to use advanced filtration technologies. My understanding is that China VI vehicles are more reliable in reducing harmful substances, and I recommend choosing them when buying a new car. The engine runs quieter in use.