Can I Add 95 Octane Gasoline to a Volkswagen T-Roc Before Finishing the 92 Octane?

[LeArthur]

Generally, if you want to switch to a different octane rating of gasoline, you should first use up the existing fuel before refilling with the new octane-rated gasoline. Mixing Gasoline: 92 octane gasoline can occasionally be mixed with 95 octane gasoline, but long-term mixing may shorten the vehicle's lifespan and significantly impact the fuel injection system, ignition system, and engine. If 95 octane gasoline is recommended but 92 octane is used instead, doing so once or twice is acceptable. However, prolonged use of 92 octane gasoline may fail to meet the engine's operational requirements. Fueling as Recommended: Under normal circumstances, it is advisable to use the octane rating specified on the fuel tank cap. There is no need to use a higher octane gasoline. In practice, higher octane gasoline does not provide significant benefits, nor does it extend the vehicle's lifespan. It is typically used in mid-to-high-end brand models.