Is it harmful to add 92-octane gasoline to a Mercedes-Benz C200?
1 Answers
The official recommended fuel for the Mercedes-Benz C200 is 95-octane gasoline. If the requirements are strict, 92-octane gasoline cannot be used. Long-term use will have significant negative effects. In fact, most Mercedes-Benz models cannot use 92-octane gasoline. Luxury brand vehicles generally require a minimum of 95-octane gasoline. Using 92-octane gasoline can lead to increased fuel consumption, reduced engine power, and even cause engine carbon buildup and knocking. Knocking is an abnormal combustion phenomenon in the engine. It reduces engine power, increases fuel consumption, and can also damage the engine. When the piston is in the compression stroke, it moves upward to compress the air-fuel mixture. At this point, the pressure and temperature of the mixture rise. If the mixture ignites before the spark plug fires, this phenomenon is called knocking. Severe knocking can even cause the piston to crack or the connecting rod to deform. Higher-octane gasoline has a higher octane rating, which means better stability. Therefore, most luxury cars require 95-octane gasoline because it helps prevent knocking. This allows engineers to use higher compression ratios and turbocharging pressures, thereby improving engine performance. When refueling, always choose the correct gasoline octane rating for your vehicle.
