How to Distinguish Between National 5 and National 6 Vehicles When Buying a New Car?
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Methods to distinguish between National 5 and National 6 vehicles when purchasing a car are: 1. Based on the vehicle's factory certificate. 2. According to the vehicle's environmental standard list. 3. Check the vehicle conformity certificate. More details are as follows: The difference between National 5 and National 6 emission standards lies in the carbon monoxide emission levels: National 5 emission is 1000mg, while National 6 emission is 700mg. National 5, fully known as the National Fifth Stage Motor Vehicle Pollutant Emission Standard, and National 6, fully known as the National Sixth Stage Motor Vehicle Pollutant Emission Standard, both regulate the content of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulates, and soot emitted from vehicle exhaust.
The most direct way to distinguish between China 5 and China 6 when buying a car is to check the vehicle's nameplate. That small metal plate is usually attached to the edge of the driver's side door or below the B-pillar, clearly indicating the engine's emission standard. For example, 'GB18352.5-2013' means China 5, while 'GB18352.6-2016' means China 6. Don't rush to sign the contract—take a few extra minutes to check the environmental label, which is typically stuck on the inside of the windshield. If it's unclear, ask the dealership staff to show the environmental certification documents. China 6-compliant cars emit fewer pollutants, with significantly lower levels of carbon monoxide and nitrogen oxides compared to China 5, making them better for the environment and more fuel-efficient in the long run. When I bought my car, I relied on these details to avoid purchasing old stock and even qualified for the government's new energy subsidies. Paying attention to these aspects not only ensures you get a reliable car but also saves you the hassle of annual inspections later on.
