What does Guolv represent?
2 Answers
Guolv represents China IV (National IV emission standard). Guolv is set based on the compatibility of vehicle engine systems and emission standard tests, belonging to transitional vehicle models. The sulfur content limit for China IV standard gasoline is 150 milligrams per kilogram. Currently, light-duty diesel vehicles implement the third-stage emission standard, while light-duty gasoline vehicles implement the fourth-stage emission standard. The China IV emission standard is the national fourth-stage motor vehicle pollutant emission standard. The main pollutants emitted by vehicles include hydrocarbons, nitrogen oxides, carbon monoxide, and particulate matter. Through the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, the standard controls and reduces vehicle emissions to below specified levels.
China VI, also known as the National VI Emission Standard, is what we commonly refer to as the China 6 emission standard. Having driven for over 20 years, I've witnessed the continuous upgrade of emission standards from China I to the current China VI. Each upgrade aims to reduce vehicle exhaust pollution. Did you know? China VI is implemented in two phases: China VIa and China VIb, which were gradually introduced as early as 2019. Compared to the previous China V standard, it imposes stricter requirements, particularly in reducing nitrogen oxides and particulate matter, with restrictions applying to both diesel and gasoline vehicles. This isn't just an environmental slogan—it genuinely improves urban air quality, for example, by reducing smoggy days. When choosing a car, look for the China VI label; it ensures safer and more reliable driving with fewer maintenance hassles.
