What are the differences between National V and National VI?
2 Answers
The biggest difference is that National VI has stricter control over pollutants. Here are the differences between the two: 1. Different durability mileage: Compared to National VI, National V increases from 80,000 kilometers to 160,000 kilometers. 2. Different particulate matter particle numbers: Compared to National VI, National V gasoline vehicles have 25% stricter nitrogen oxide limits, and diesel vehicles have 28% stricter nitrogen oxide limits. 3. Different sulfur content: The sulfur content limit for National VI standard gasoline is 50mg/kg, while the sulfur content limit for National V standard gasoline is 10mg/kg. 4. Different implementation times: The implementation time for National VI standards was December 2014, while the implementation time for National V standards was December 2017.
I drove a China V vehicle for three years before switching to a China V1 model, which made me realize the differences. China V refers to vehicles produced before 2017, like my old 2016 Tiguan. China V1 is more accurately called China V Phase 2, with much stricter emission limits. The most noticeable difference is in nitrogen oxide emissions—the standard for China V1 diesel vehicles dropped from 180mg/km to 80mg/km, while gasoline vehicles tightened from 60mg/km to 35mg/km. Last year during the inspection, the technician at the testing station mentioned that older China V vehicles have a significantly higher failure rate in emissions tests, especially those with 70,000-80,000 kilometers on them. Some cities have already started restricting China V vehicles. My friend in Shanghai drives a China V Accord and can no longer enter the Inner Ring Elevated Road.
