How to Refuel
Most gas stations in Guam are self-serve.
Some pumps offer full service, but self-serve is cheaper. There are just five steps, so even first-timers can fill up with confidence.

Park at a self-serve pump
At “Full Serve” pumps an attendant fills up for you, which costs more.
Choose regular unleaded (Shell FuelSave)
Tell the cashier your pump number
Fill the tank
The pump shuts off by itself when the tank is full. Don’t squeeze again to top off: fuel can overflow and damage the pump. Hang the nozzle back up when you’re done.
Pay
Gas prices change often, so check the price shown on the pump. Keep the receipt to show when you settle up after returning the car.
You’ll be shown where nearby gas stations are when you pick up the car.
Cars are rented with a full tank, so fill up at a gas station before returning the car. If the tank was not full at pickup, refill it to the pickup level.
*If you can’t refuel or the tank is short, the fuel will be charged at the rental company’s standard rates. Because staff have to refuel the car, it costs more than doing it yourself.