What is the optimal amount to fill the fuel tank?
1 Answers
It is most appropriate to fill the fuel tank to 80% of its capacity. The impacts of overfilling are as follows: 1. Blocking the vent hole: Once the vent hole is blocked, negative pressure will form inside the fuel tank, leading to poor fuel supply or even failure to supply fuel. This may result in the engine failing to start immediately after refueling. 2. Harm to the carbon canister: The carbon canister is usually installed between the fuel tank and the engine. Since gasoline is a volatile liquid, the fuel tank often contains vapor at normal temperatures. The fuel evaporation emission control system is designed to direct the vapor into combustion and prevent it from evaporating into the atmosphere. If the tank is overfilled, liquid gasoline instead of vapor enters the carbon canister, which can cause damage to it.