Is there any problem with filling a Mercedes-Benz with 92 octane gasoline?
2 Answers
The manual states that 92 octane gasoline can be used, but it is not recommended for long-term use. Here is the relevant introduction: Mercedes-Benz: Mercedes-Benz is a world-renowned luxury car brand. In January 1886, Karl Benz invented the world's first three-wheeled car and obtained a patent, earning him the title of 'the inventor of the automobile.' At the same time, Gottlieb Daimler, another founder of Mercedes-Benz, invented the world's first four-wheeled car. Brand History: Mercedes-Benz is a top-tier luxury car brand globally, considered one of the most premium automobile brands in the world. It is praised for its perfect technical level, stringent quality standards, innovative capabilities, and a series of classic coupe models. Internationally, the brand is commonly referred to as Mercedes, while in mainland China, it is called 'Benz' (hence the term Mercedes-Benz). In Taiwan, it is translated as 'Benz,' and in Hong Kong, it is translated as 'Pingzhi.'
I'm a car enthusiast and quite familiar with luxury car engines like those from Mercedes-Benz. They typically require 95-octane or higher gasoline because of their high compression ratios, designed with the expectation that high-octane fuel prevents knocking. Knocking occurs when gasoline spontaneously ignites in the cylinder, creating shock waves that can damage pistons or engine components. Using 92-octane fuel, which has a lower octane rating, will definitely cause problems over time: the engine may develop abnormal noises, increased fuel consumption, or even a shortened lifespan. Modern Mercedes-Benz vehicles have sensors that automatically adjust ignition timing to mitigate the effects, but this is only a temporary fix, not a long-term solution. When I use my car, I always insist on 95-octane fuel—it runs smoothly and worry-free. Occasionally using 92-octane by mistake might not cause immediate harm, but it's best not to take the risk. The maintenance manual clearly states that it's worth spending a bit more on fuel to avoid costly major repairs later.
