Can the Mercedes-Benz C-Class use 98 octane gasoline?

[DelCole]

Mercedes-Benz C-Class can use 98 octane gasoline, but Mercedes-Benz recommends 95 octane gasoline. Refueling process for Mercedes-Benz C-Class: When the central door lock is unlocked, the fuel tank cover will automatically unlock or lock. Press the left side of the fuel tank cover to open it, then remove the fuel tank cap and insert it into the fuel tank cover before refueling. Definition of 95 octane gasoline: 95 octane gasoline consists of 95% isooctane and 3% n-heptane. High-compression engines should use high-octane gasoline. Using low-octane gasoline in a high-compression engine may cause abnormal combustion, leading to knocking, increased fuel consumption, and reduced driving power. However, modern high-compression engines can also use lower-octane gasoline. Do not blindly choose gasoline based on compression ratio; simply follow the manufacturer's recommendations.