What is the emission standard for a 2004 car?
2 Answers
2004 cars comply with China II emission standard. Implementation timeline of emission standards: 1. China I standard: Nationwide implementation on July 1, 2001, mainly restricting carbon monoxide, hydrocarbons, and particulate emissions. 2. China II standard: Nationwide implementation on July 1, 2004, requiring 30% reduction in carbon monoxide and 55% reduction in hydrocarbons and carbon oxides. 3. China III standard: Nationwide implementation on July 1, 2007, requiring 40% reduction in total pollutant emissions compared to China II. 4. China IV standard: Nationwide implementation on July 1, 2010, requiring 50% to 60% reduction compared to China III. 5. China V standard: Nationwide implementation on January 1, 2018, requiring 25% reduction in nitrogen oxide emissions compared to China IV. 6. China VI standard: China VIa nationwide implementation on July 1, 2020; China VIb nationwide implementation on July 1, 2023.
Cars from 2004 typically comply with China National II emission standards. Back when I was driving, I remember the emission requirements had just been upgraded - National II was stricter than the previous National I, but pollution control technology was still relatively basic. Nowadays, driving such older vehicles requires caution regarding urban traffic restrictions, as cities like Beijing and Shanghai have low-emission zones that limit high-polluting vehicles. Fuel consumption might be slightly higher compared to newer models, making long-term operation costly. I recommend owners perform regular engine maintenance and replace air filters to marginally improve emission performance. If budget permits, consider switching to a new energy vehicle or China VI-compliant car for better environmental performance and fuel savings. While emission standards keep advancing, proper maintenance can extend an older vehicle's lifespan - but don't neglect environmental responsibilities.
