Should I Use 92 or 95 Octane Gasoline for Former 93+ Octane?

[SanClara]

Originally labeled as 93 octane or higher, now you can choose between 92 or 95 octane gasoline. To reduce PM2.5 emissions and achieve environmentally friendly development, the Chinese government has established a gasoline upgrade schedule. Currently, all gasoline nationwide meets the China IV standard, with octane ratings of 90/93/97. However, regions like Beijing, Shanghai, Guangdong, Zhejiang, and Jiangsu have largely adopted China V standard gasoline, corresponding to 89, 92, and 95 octane ratings. Here are the details: 1. Octane Rating: This value represents gasoline's anti-knock index, measuring its resistance to detonation in engine cylinders. Higher values indicate better anti-knock performance and fuel quality. 2. Reasons for Adjusting Gasoline Grades: Notably, the China V standard's requirements for reduced sulfur content and prohibition of manganese additives necessitate some octane reduction. When refineries cannot fully compensate for octane loss from ultra-low sulfurization, adjusting gasoline grades becomes the solution.