
Cars manufactured in 2006 could comply with either China II (National II) or China III (National III) emission standards. The exact standard depends on the specific brand and model of the vehicle. Below are relevant details: 1. According to the "Announcement on Implementing the National Phase II Motor Vehicle Emission Standards" issued by the State Environmental Protection Administration, starting from September 1, 2003, all heavy-duty vehicles undergoing type approval must meet the National Phase II emission limits, equivalent to Euro 2 standards. This marked a new stage in China's motor vehicle emission pollution control. 2. From July 1, 2004, all newly approved light-duty vehicles were required to meet China II standards, and the application and approval for light-duty vehicles meeting China I standards (equivalent to Euro 1) were discontinued.

I've been driving my 2006 car for over a decade, which falls under the China II emission standard. Back then, the China III standard hadn't been introduced yet—it was only mandated nationwide in 2007, so most 2006 cars were China II compliant. I remember when driving this car, emission requirements weren't as strict as they are now, and the exhaust contained more pollutants. But nowadays in cities, some areas restrict China II vehicles, so you really need to pay attention. During maintenance, I always check the engine and exhaust system. If the exhaust smells strong, I get it fixed immediately—don't wait until an environmental inspection to regret it. Overall, keeping a 2006 car running this long is quite an achievement, but it's important to stay updated on policy changes. Switching to a China IV or China VI vehicle would be more environmentally friendly and cost-effective in the long run.

My 2006 used car has been quite durable, but it only meets China II emission standards. The China II standard was implemented in 2005 and remained until China III took effect in 2007, so all vehicles produced in 2006 were China II compliant. As someone who enjoys studying car maintenance, I know that lower emission standards can affect annual inspections – last year, mine almost failed. I recommend fellow car owners check their vehicle's environmental label or VIN to confirm the standard. However, older cars have advantages too: simpler maintenance and cheaper parts. Adding a catalytic converter can improve emissions, making it suitable for daily driving. The key is understanding the evolution from China I to China VI standards – the changes have been significant. We need to keep up with environmental awareness and ensure our older vehicles don't become problematic.

Most vehicles from 2006 were compliant with China National II emission standards. At that time, the National III standard had not yet been mandatorily implemented, and emission controls were not as stringent as they are today, resulting in higher vehicle exhaust pollution. As someone who follows environmental topics, I understand that these standards significantly impact air quality, making the emission issues of older vehicles particularly noteworthy. Driving such cars daily may result in slightly higher fuel consumption, and it's essential to regularly inspect the exhaust system to avoid exceeding emission limits. Knowing your vehicle's emission level can help you choose greener transportation options, such as carpooling or switching to new energy vehicles.


