What are China III and China IV Vehicles?
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China III and China IV vehicles are motor vehicles that comply with China's automotive emission standards. The following are the key differences between China III and China IV: 1. China III refers to the third stage of China's automotive emission standards, which introduced upgrades and modifications to engines and exhaust systems to reduce pollutant emissions, including enhancements to vehicle self-diagnostic systems. 2. China IV represents the fourth stage of China's automotive emission standards, featuring further upgrades to the post-emission treatment systems compared to China III, with pollutant emission standards reduced by 50% to 60% relative to China III. 3. To stably meet the China III emission standards, vehicles must be equipped with technical measures that ensure pollutant emissions comply with China III standards, along with the use of fuel that meets Euro III standards.