Is it unsafe to fill up the gas tank in summer?
2 Answers
It is not advisable to fill up the gas tank completely in summer, as doing so can not only cause damage to the vehicle and disrupt the normal operation of the engine, but also pose a risk of fire or explosion. Additional information: 1. A full gas tank can easily block the vent hole. Once the vent hole is blocked, negative pressure will form inside the tank, leading to poor fuel supply or even a complete lack of fuel. This can result in the vehicle failing to start immediately after refueling. 2. When driving on highways, a full tank can cause jerky movements, making the ride uncomfortable for both the driver and passengers. Moreover, if the tank is overfilled, especially in summer, gasoline vapors may not form properly. These vapors can directly enter the carbon canister through the fuel components, potentially damaging it.
I've been driving for decades and always fill up the tank in summer without any issues. The fuel tank is designed to account for thermal expansion, allowing some space for fuel to expand when temperatures rise—just avoid forcing too much extra after the pump clicks off. Filling to the proper level reduces refueling frequency and makes summer road trips more convenient. The fuel system has an evaporative emission control device to handle vapors, ensuring safety under normal use. Developing good habits is key, like stopping at the automatic shut-off and not overfilling out of cleverness. This also protects the charcoal canister from saturation and extends component lifespan.
