Is It Necessary to Run the Tank Empty When Switching from 92 to 95 Octane?

[Lewis]

It is recommended to fully consume the 92 octane gasoline before refueling with 95 octane gasoline, as this helps prolong the engine's service life. Below is additional information: 1. Hazards of mixing different octane ratings: 92 and 95 octane gasoline have different stability levels. If extensively mixed, the gasoline's stability may be compromised. Using mixed gasoline while driving can cause engine knocking or detonation, significantly increasing vehicle vibration and potentially damaging the engine, leading to malfunctions. 2. Precautions: When refueling, follow the instructions on the vehicle's fuel tank cap. While switching to a higher octane rating is possible, it may not necessarily improve performance or provide additional engine protection. If the vehicle requires 95 octane gasoline, never use 92 octane; if it requires 92 octane, 95 octane can be used. Avoid frequent changes in gasoline octane ratings, as this may affect the vehicle's fuel consumption.