Can I switch back to 92 after using 95 for half a year?

[LaPatrick]

You can switch back to 92 after using 95 for half a year. The following are the differences between 92 gasoline and 95 gasoline: In terms of n-heptane content: 95 gasoline contains 5% n-heptane; 92 gasoline contains 8% n-heptane. In terms of isooctane content: 95 gasoline contains 95% isooctane; 92 gasoline contains 92% isooctane. In terms of anti-knock performance: Different gasoline grades represent different fuel anti-knock performances. The higher the gasoline grade, the better the anti-knock performance. 95 gasoline has better anti-knock performance than 92 gasoline. The following is extended information about 92 gasoline: Fuel grade: The automotive fuel grade was introduced after the National Five Standard, where 92 gasoline replaced 93 gasoline, and 95 gasoline replaced 97 gasoline. Regulation: Motor vehicles must use the specified fuel grade, otherwise engine problems will occur.