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What is the difference between China II and China III motorcycle engines?

1 Answers

LaylaLynn

07/29/25 7:00pm

The difference between China II and China III motorcycles is that China III is more environmentally friendly than China II. Major domestic engine manufacturers have begun developing their own EGR engines to meet the China III emission standards and satisfy market demand. The EGR engine is a transitional engine from China II to China III emission stages. The true China III engine is the high-pressure common rail engine. Introduction to Emission Standards: Automobile emission standards refer to the regulations on the content of harmful gases such as CO (carbon monoxide), HC+NOx (hydrocarbons and nitrogen oxides), and PM (particulates, soot) emitted from vehicle exhaust. Implementation of Emission Standards: Starting from January 1, 2004, Beijing upgraded the tailpipe emission standards for motor vehicles from Euro I to Euro II. By 2008, the Euro III standard was officially implemented.

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