What Are the Hazards of Filling Up the Fuel Tank in Summer?
1 Answers
Filling up the fuel tank can lead to poor fuel efficiency and high risks. The details are as follows: Hazards of filling up the fuel tank: Worse Fuel Economy: Studies show that for every 100kg increase in weight, a car's fuel consumption rises by 6-8%. If manufacturers didn't consider this, why not increase the tank capacity further? More fuel means greater vehicle mass, resulting only in higher fuel consumption. Increased Health Risks: Overfilling the tank causes liquid fuel to flow directly into the charcoal canister, damaging its vapor absorption function. Evaporated fuel gases (containing carcinogens like benzene) are released, posing long-term health hazards to passengers. Clogged Ventilation Holes: The small vent holes on the fuel tank cap are used to balance internal and external pressure. Once clogged by fuel, negative pressure builds up inside the tank. The fuel pump fails to draw fuel, leading to unstable fuel supply—causing the car to jerk or even fail to start.