How to Distinguish Between China 5 and China 6 Vehicles?

2 Answers
LaJaxson
07/28/25 10:43pm
China 5 emission standard is marked with a V, while China 6 emission standard is marked with a Ⅵ, both using Roman numerals. There are four methods to check the emission standard: 1. Check the vehicle's environmental protection label on the windshield; 2. Log in to the website of the Motor Vehicle Exhaust Pollution Supervision and Management Center to inquire, or bring the vehicle registration certificate to the vehicle management office for inquiry; 3. Refer to the vehicle's factory certificate for details; 4. Estimate based on the year of vehicle registration: most vehicles registered after 2008 are China 4, while those registered in 2007 could be either China 3 or China 4, and so on.
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Vicki
08/12/25 3:11am
The most reliable way is to check the vehicle documents. The second page of the motor vehicle registration certificate clearly indicates whether it's China 5 or China 6, and the environmental protection information sheet that comes with the vehicle also prints it clearly. You can also make an educated guess by checking the production date - domestically produced gasoline vehicles manufactured after July 2019 are mostly China 6 compliant, while imported vehicles might be slightly later. Another method is to open the engine hood and look for a carbon canister and particulate filter, as China 6 vehicles are generally equipped with these two components to reduce exhaust pollution. The simplest way is to download the 'Auto Environmental Protection Network' APP, enter the VIN, and the emission level will pop up immediately - personally tested and completed in just three minutes.
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