What grade of gasoline should a Mercedes-Benz S-Class use?

[AnastasiaRose]

Mercedes-Benz S-Class can use 95-octane gasoline. Automobile engine compression ratio: For cars with a compression ratio between 8.0 and 8.5, 92 or 95-octane gasoline should be used; for those between 8.5 and 9.5, 95-octane or higher should be used; for those above 9.5, 97 or 98-octane gasoline should be used. Introduction to the Mercedes-Benz S-Class: The Mercedes-Benz S-Class is a top-tier luxury vehicle launched by Mercedes-Benz, a brand under the German Daimler Group. In terms of body dimensions, the Mercedes-Benz S-Class measures 5209mm in length, 1872mm in width, and 1473mm in height, with a wheelbase of 3165mm. The Mercedes-Benz S-Class is equipped with bi-xenon headlights, with novel-looking turn signals that make the vehicle more eye-catching. The uniquely styled taillights are very dynamic, and since the turn signals, taillights, and brake lights use striking LED technology, they form a unique visual signature.

[LoganMarie]

As a long-time Mercedes-Benz S-Class owner, I find that using 98-octane gasoline is most suitable. The S-Class engine is quite advanced with a high compression ratio. Using lower-octane fuel can easily cause knocking, which affects performance and may even lead to engine damage. I usually fill up with 98-octane, and I notice quicker starts, smoother acceleration, and better fuel efficiency on highways. I've occasionally used 95-octane, but the car would have slight vibrations, so I don't recommend long-term use. The manual suggests using 97-octane or higher, and 98-octane is commonly available at Chinese gas stations. Fuel quality is also crucial—choose reputable gas stations to avoid substandard fuel, making maintenance easier and preventing extra repair costs in the future. Remember to check the label inside the fuel tank cap for confirmation.

[OIsabelle]

After spending years in car enthusiast circles, I've found that using 98-octane gasoline is the safest choice for Mercedes-Benz S-Class. High-octane fuel prevents pre-ignition and protects the engine, especially for those turbocharged S-Class models. While 95-octane works, 98-octane performs better. Some fellow owners tried 92-octane and ended up with engine warning lights - repairs cost thousands. From an engineering perspective, S-Class engines require stable combustion. I recommend 98-octane to reduce carbon buildup and extend engine life. Always choose major fuel brands like Sinopec for cleaner gasoline. When driving abroad, pay special attention to local octane rating differences - using the recommended premium grade protects your investment.

[OAmy]

After driving a Mercedes-Benz S-Class for a while, I've settled on using 98-octane gasoline. It ensures smooth engine operation and reduced noise. The manual clearly states the use of RON98 or RON95. Don't compromise by using lower-grade fuel, as it may cause knocking or even damage components. Maintenance is straightforward—using 98-octane prevents potential issues. Always check the labels at the gas station; I prefer reputable chain stations to avoid adulterated fuel that could affect performance. Occasionally using 95-octane is acceptable, but it's best to avoid it when possible.