What is the difference between Euro 5 and China 6?

[McMatthew]

Compared to the Euro 5 emission standard, the China 6 emission standard is more stringent, with China 6 becoming one of the strictest standards globally. Here are the relevant details: 1. The China 6 emission standard is an upgraded version of China 5, tightening the emission limits by nearly 50%, with the same requirements applying to diesel vehicles. 2. In specific terms, carbon monoxide emissions are reduced by 50% from the previous standard, with similar reductions for total hydrocarbons and non-methane hydrocarbons, while nitrogen oxide emissions are required to decrease by approximately 42%. 3. The Euro 5 standard was officially implemented in Europe in 2009 as the fifth-generation emission standard. Under Euro 5: the maximum particulate emissions are 0.005 grams per kilometer; total hydrocarbon emissions are below 0.1g/km; carbon monoxide emissions are below 1.0g/km; and nitrogen oxide emissions are below 0.06g/km.