What is the Difference Between a Car's Fuel Tank Capacity and Its Actual Capacity?
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In reality, a car's 50-liter fuel tank can typically be filled to between 50 to 55 liters. The 50-liter capacity is usually the rated capacity specified in the car's manual, representing the maximum safe capacity set by the manufacturer when the fuel tank is produced. The car's fuel tank capacity is smaller than its actual capacity because fuel is a flammable liquid. Filling the tank to its rated capacity effectively prevents overfilling and avoids the risk of spillage, which could lead to fire hazards. During the actual refueling process, the amount of fuel may exceed the marked volume. This is because the volume specified by the car manufacturer is measured from the bottom of the tank to the safe fill level, and there is additional space from the safe fill level to the tank opening. This extra space ensures that the fuel can expand when temperatures rise without overflowing the tank. If fuel is filled up to the tank opening during refueling, the actual amount of fuel added may exceed the marked tank capacity. To check the remaining fuel in the tank, drivers can observe the fuel gauge on the right side of the dashboard, which is marked with 'E' and 'F.' When the needle is close to 'E,' it indicates that the fuel is running low, while nearing 'F' means the tank is nearly full.