When refueling at a gas station, often fuel stains caused by gasoline dripping instead of being fully added into fuel tank can be seen everywhere while these gasoline stains may evaporate to result in a peril incident. To correct this situation, the product is designed an arc nozzle that modifies the shape of dispenser nozzle; thus its immersed area inside fuel tank is lessened while drop formation on the arc surface that causes fuel stain and dripping is reduced; and a guideway is further designed to divert the fuel drops back to fuel dispenser without exposing them. Also, it can enhance the application interface between fuel dispenser and fueling machine for users to learn about the fuel volume in fuel tank; and read the evident information displayed on the handle of dispenser so that user can use it smoothly.