Self-service gas stations allow customers to pump their own fuel into their vehicles. This system typically involves a fuel dispenser that is equipped with a nozzle, which the customer uses to fill their gas tank. Payment is usually made at the pump using a credit or debit card, or inside the station at a cashier. These stations are popular because they can reduce labor costs and often offer lower prices compared to full-service stations. Customers appreciate the convenience and speed of self-service, as they can fill up their tanks without waiting for an attendant, making it a quick and efficient option for refueling.