Does filling up the car fuel tank in summer have any impact on the car?
2 Answers
Filling up the car fuel tank in summer can have certain hazards. Here are the hazards of filling up the car fuel tank in summer: 1. Worse fuel economy. Studies show that for every 100kg increase in weight, the car's fuel consumption increases by 6-8%. More fuel means greater car mass, leading to higher fuel consumption. 2. High fuel level may lead to expansion and overflow, posing driving risks. With high summer temperatures, gasoline expands when heated. A full tank increases the risk of fuel overflow, which could be very dangerous if exposed to open flames. 3. Increased health risks. An overfilled tank may cause liquid fuel to flow directly into the carbon canister, damaging its vapor absorption function. Over time, the released fuel vapors (containing carcinogens like benzene) can pose health hazards to passengers. 4. Clogging the vent hole. The small vent hole on the fuel tank cap balances internal and external pressure. If clogged by fuel, negative pressure builds up in the tank. The fuel pump may fail to draw fuel, causing unstable fuel supply or even preventing the car from starting.
As an ordinary driver, I often encounter the issue of overfilling the fuel tank during summer. Under high temperatures, fuel expands, and a full gauge can lead to slight spillage, causing oil stains under the hood or fuel odors inside the car, which is particularly annoying. Over time, this also increases evaporation loss, wasting fuel money for nothing. Once, I even got a warning due to unstable fuel pressure after filling up, and the repair shop said it was due to excessive gas pressure in the tank that needed to be released. Now, for peace of mind and safety, I generally stop filling when the pump automatically shuts off in summer to avoid these minor incidents, making the drive much more comfortable.
