What is the actual fuel consumption of the Mercedes-Benz R300?

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The official fuel consumption figure for the Mercedes-Benz R300 is around 8.5L/100km, but in actual driving conditions, the combined fuel consumption is between 9-12L/100km. Additionally, the most critical factors affecting fuel consumption are driving habits and road conditions. The reasons for increasing fuel consumption are as follows: Temperature effects causing fuel consumption fluctuations: Generally, in winter, lower temperatures lead to higher fuel consumption, almost comparable to using air conditioning in summer. This is because lower temperatures cause the engine to dissipate more heat. Lack of regular vehicle maintenance: Dirty engine oil and air filters can also increase fuel consumption. Dirty oil leads to poor lubrication, increasing resistance in the engine's moving parts and requiring more energy to overcome this resistance, thus raising fuel consumption. Spark plugs need replacement: Spark plugs are often overlooked. Even if they can still function, worn spark plugs may cause delayed ignition due to insufficient ignition energy, missing the optimal ignition timing.