
2009 Excelle meets the China IV emission standard. Here is some introduction about the Excelle: 1. The Buick Excelle is equipped with a Twin-Tec DOHC engine, a 16-valve DOHC engine, with a curb weight (kg) of 1250, fuel consumption (L) of 8, and specific power (Kw/l) of 48.7. 2. It features MacPherson independent front suspension and multi-link independent rear suspension, tire specification 195/55R15, 0-100km/h acceleration time (s) of 12.7, and a drag coefficient (Cd) of 0.338.

I remember the 2009 Buick Excelle mostly met the China III emission standards. As a longtime car enthusiast who has driven many Excelle models, I paid attention to emission issues even when buying new cars back then. The China III standard was introduced around 2005. By 2009, although the China IV standard had just been released, the Excelle still primarily complied with China III, which had higher emission limits—for example, CO emissions were less strict than the new standard. During routine maintenance, if the catalytic converter fails, emissions deteriorate noticeably, making it easier to fail the annual exhaust test. Owners can check their vehicle's environmental label or the information on the registration certificate for confirmation. Emission standards affect environmental policies—major cities like Beijing and Shenzhen restrict high-emission vehicles from entering inner-city areas. If you live in a city center, driving this car might face restrictions compared to newer China VI-compliant vehicles. It's advisable to regularly replace the air filter and spark plugs to minimize emission risks.

I used to drive a 2009 Buick Excelle, which met the National III emission standards. When I bought it second-hand, the seller mentioned this. I recall that China's emission standards range from National I to National VI. Back in 2009, during the transition period for new vehicles, the mainstream version of the Excelle hadn't been upgraded to National IV. The reason might be related to production costs and design, as automakers were prioritizing other technologies at that time. Nowadays, National III vehicles are considered to emit slightly more pollutants, with looser restrictions on carbon monoxide and particulate emissions. To check your vehicle's emission standard, you can visit the Ministry of Environmental Protection's website and enter the VIN code. Some cities, like Guangzhou, impose restrictions on National III vehicles entering urban areas, requiring detours for travel. It's recommended that owners use cleaner gasoline or regularly perform exhaust emission tests and maintenance to avoid issues during annual inspections that could affect daily use.

My 2009 Excelle meets China III emission standards. When I bought it, the salesperson clearly explained that emission standards relate to exhaust purification levels. China III is sufficient for older cars, but it's more polluting compared to newer national standards. Checking the standard is easy: look at the engine nameplate or the environmental protection page on the vehicle license. After driving for a long time, pay attention to the three-way catalytic converter to avoid damage, and repair promptly if the emission light comes on.


