What type of gasoline should be used for the Mercedes-Benz GLB?
2 Answers
The Mercedes-Benz GLB should use 95-octane gasoline. Below are the differences between 95-octane and 92-octane gasoline: Composition ratio: 95-octane gasoline contains 95% isooctane and 5% n-heptane; 92-octane gasoline contains 92% isooctane and 8% n-heptane. Anti-knock performance: 95-octane gasoline has higher anti-knock performance; 92-octane gasoline has lower anti-knock performance. Below is additional information about 92-octane gasoline: Fuel grade: The automotive fuel grades were introduced after the China V standard, with 92-octane gasoline replacing 93-octane gasoline and 95-octane gasoline replacing 97-octane gasoline. Regulation: Vehicles must use the specified fuel grade; otherwise, engine problems may occur.
I've driven the Mercedes-Benz GLB quite a bit, and it requires 95-octane gasoline or higher. Mercedes emphasizes in the manual to use high-octane fuel because the engine is turbocharged—95-octane or above helps prevent knocking and protects engine durability. Once, I tried saving money by using 92-octane fuel, and I immediately noticed sluggish acceleration and slight vibrations, so I had to switch back quickly. Although high-octane fuel is more expensive, it burns more efficiently, improves fuel economy, and ultimately saves on long-term repair costs. Extending the engine’s lifespan also ensures smoother performance and prevents minor issues from turning into major repairs. Adding quality fuel during regular maintenance makes ownership much more worry-free.
