What to Do If You Accidentally Filled Up T-Roc with 92 Octane Gasoline?

[Deborah]

Occasionally using gasoline with a different octane rating once or twice is not a big deal, but prolonged use can lead to problems. This can cause increased carbon deposits in the engine and higher fuel consumption. If the engine fails, it becomes a major issue.

[JosieFitz]

That day when I was driving my T-Roc to refuel, I absentmindedly filled it with 92-octane gasoline and my heart skipped a beat. But I immediately realized that an occasional mistake isn’t a big deal—the key is to monitor the engine’s response. German cars are indeed better suited for 95-octane fuel, as 92 has a lower octane rating and may cause knocking during aggressive driving. However, if you’re just commuting in the city, finishing this tank shouldn’t cause major issues. Back then, I maintained smooth driving, avoided sudden acceleration, and refilled with 95-octane when the fuel gauge dropped to a quarter to dilute the mixture. Afterward, I kept an eye on the engine sound and power output—if abnormal vibrations occurred, I’d promptly visit a repair shop to clean the fuel system. Remember, don’t just wait for the tank to empty; timely action is crucial.