Can I Add 95 Gasoline When 92 Gasoline Is Not Completely Used Up?

[DiBradley]

You can add 95 gasoline when 92 gasoline is not completely used up, but it is not recommended to do this frequently. Occasionally mixing them is fine. The chemical compositions of 92 and 95 gasoline are relatively similar, and both have strong anti-knock properties. Generally, mixing them won't cause significant issues. However, to ensure vehicle safety, it's best to use them separately. 95 gasoline contains a slightly higher proportion of anti-knock additives compared to 92 gasoline. The quality of both fuels is exactly the same; the only difference lies in the amount of anti-knock agents added, which is designed to meet the varying anti-knock requirements of engines with different compression ratios.