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What does National V engine refer to?

4 Answers
JourneyLee
07/29/25 12:39pm
National V engine refers to compliance with the National Phase V vehicle pollutant emission standards, also known as "National V Standard". The emission control level of the National V Standard is equivalent to the European Stage 5 emission standard currently in effect. It imposes more stringent limits on vehicle emissions such as nitrogen oxides (NOx), hydrocarbons (HC), carbon monoxide (CO), and particulate matter (PM) compared to previous standards. In comparison with the National IV Standard, the National V Standard reduces nitrogen oxide emissions by 25% for light-duty vehicles and 43% for heavy-duty vehicles. Based on Shanghai's annual vehicle registration volume of approximately 350,000 units, it is estimated that the annual increase in new vehicles could reduce nitrogen oxide emissions by about 1,000 tons per year.
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Anastasia
08/14/25 12:37am
China's National V is the fifth-stage emission standard, primarily controlling pollutant limits in vehicle exhaust, such as nitrogen oxides and carbon monoxide emissions. It requires more advanced technologies, like improved three-way catalytic converters and OBD systems for real-time monitoring, ensuring more efficient engine combustion. Having researched automotive technology for years, I've observed that since the implementation of National V, many automakers have enhanced their designs, reducing fuel consumption and maintenance costs while mitigating smog issues. As consumers, paying attention to this standard when purchasing a car can help select more eco-friendly and economical models. The nationwide promotion of National V in 2017 spurred industrial upgrades, elevating China's automotive market to international standards. Overall, this is not just a regulation but a crucial step toward improving air quality.
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MacJuliet
10/09/25 5:08am
Speaking of China V engine standards, it refers to the fifth version of government-mandated vehicle emission regulations. As someone who drives frequently, I used to see old gasoline cars emitting thick black smoke, but now China V-compliant vehicles noticeably reduce pollution. Simply put, these standards limit harmful gas concentrations to make engines cleaner and more fuel-efficient. When buying a car, having this certification usually means better resale value, and such vehicles are easier to sell secondhand. I've also observed improved urban air quality since China V implementation, reducing environmental concerns while driving. During routine maintenance, mechanics emphasize that compliant vehicles have fewer mechanical issues and are cost-effective. For everyday drivers, paying attention to China V standards means saving money while contributing to environmental protection.
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Caden
11/22/25 6:22am
The China V emission standard represents the fifth stage of automotive environmental protection, focusing on controlling pollutants such as particulate matter and hydrocarbon emissions. Personally, I am particularly concerned about environmental protection and find this standard excellent because it directly improves air quality and reduces health risks. After the government mandated its promotion, more vehicles have adopted advanced technologies to lower emissions. Additional benefits include enhancing urban living quality and making transportation greener. I often tell my friends to prioritize purchasing vehicles that meet China V or higher standards to support environmental protection. Overall, it plays a significant role in promoting sustainable societal development.
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