Why does fuel spit back on you while fueling?

Fuel can spit back during refueling due to several reasons, including a full tank that causes fuel to overflow, a malfunctioning or improperly positioned nozzle, or a rapid filling rate that disrupts the flow. Additionally, air trapped in the tank can create pressure, leading to fuel spitting out. It’s advisable to fill the tank slowly and ensure the nozzle is properly inserted to minimize this issue.