Why does a 50-liter fuel tank get full after adding only 40 liters?
1 Answers
It may be because there is still some fuel left when the low-fuel warning light comes on. Below are specific details about vehicle fuel tank capacity: 1. Marked capacity is the safe capacity: Most fuel tanks are marked with a safe capacity, which is generally about 10% less than the actual capacity. When designing the fuel tank, considering the thermal expansion and contraction characteristics of fuel, a certain amount of space must be left in the tank after filling to the rated volume to prevent excessive internal pressure for driving safety. Overfilling can damage the carbon canister, while underfilling leaves too much space in the tank, causing fuel to evaporate and be lost as vapor. Therefore, it is sufficient to fill until the pump automatically stops. 2. The fuel gauge cannot accurately reflect the remaining fuel: You cannot rely solely on the fuel gauge on the dashboard, as it only provides a qualitative indication rather than a quantitative measurement of the fuel in the tank. Additionally, the relationship between the amount of fuel added and the distance traveled cannot be used to judge fuel consumption, as factors such as road conditions, speed, traffic congestion, use of air conditioning, vehicle load, fuel leakage, and fuel quality can all directly affect fuel consumption.
