Can I not use 95 octane after using 98 octane?

[LaCorbin]

After using 98 octane gasoline in a car, you cannot switch to 95 octane gasoline. The effects of using 95 octane gasoline after 98 octane are: 1. It may affect the normal operation of the engine; 2. It can lead to increased car noise, reduced driving power, and engine damage. The differences between 98 octane and 95 octane gasoline are as follows: 1. Different octane values: 98 octane gasoline is a mixture of 98% isooctane and 2% n-heptane, while 95 octane gasoline is a mixture of 95% isooctane and 3% n-heptane. 2. Different gasoline grades: Different gasoline grades represent different fuel anti-knock properties. The higher the gasoline grade, the better the anti-knock performance.