Why does the fuel decrease when the car is not in use?
2 Answers
The fuel decreases when the car is not in use due to evaporation. Problems that can occur when a car is left unused for a long time: 1. Dead battery: The vehicle's battery charges while driving. If the car remains stationary for an extended period, the battery can be damaged. For older vehicles, the battery might die within 2-3 weeks. 2. Engine issues: The engine oil can deteriorate, leading to problems with lubrication and increased wear. It may even solidify. Not just the engine oil, but various coolants can also degrade. The engine can be adversely affected under such conditions. 3. Brake failure: When parked, the handbrake is usually engaged, keeping the handbrake cable in a tense state, which can shorten its lifespan.
I remember once my car was parked and not moving, yet the fuel gauge slowly dropped. After checking, I found the fuel cap wasn't tightened properly, causing gasoline to evaporate and be lost. In hot summer weather, fuel tends to evaporate more easily, but the amount is usually small. If the loss is noticeable, there might be a tiny leak in the fuel tank or fuel line, such as aging cracks in plastic pipes or failed sealing rings. I suggest first checking the parking spot for any oil stains on the ground and sniffing for any gasoline odor. Pay attention to fuel level changes during regular refueling, and visit a repair shop for inspection if necessary, to avoid wasting money and causing potential hazards. Fixing small issues promptly ensures safety and saves money.
