Car Rental Travel

ONE’S Rent A Car Return Guide | Fuel, Cleaning and Airport Shuttle

(Updated )

On your final day in Guam, work backward from your flight time so you have enough time to refuel and return the car. This guide walks through fuel, the gas receipt, cleaning, return time, vehicle inspection and the shuttle to the airport or your hotel at ONE’S Rent A Car.

Key points
  • Return the car to the ONE’S Tumon office by the time in your contract. Extensions can’t be made by phone alone; the renter and credit card holder must pay at the office.
  • Bring it back full, refueled on return day, and keep the gas receipt. Standard vehicles take regular unleaded (Shell FuelSave), and any Shell station is fine.
  • Putting in the wrong fuel can mean a $400 NOC (non-operation charge), a $150 service fee and the cost of replacing the fuel, regardless of insurance.
  • Cleaning charges are $100 for excessive sand, $300 for heavy mud, stains or dirty mats, and $250 for cigarette or marijuana odor.
  • After you return the car, a free shuttle runs from the office to Guam International Airport or your hotel. If you take a taxi instead, the fare isn’t reimbursed.

Traveler refueling a Guam rental car before returning it
Fill up with the right grade on return day and keep the receipt.

Step 1: Check Your Return Time and Flight Schedule

Bring the car back to the ONE’S Tumon office by the time in your contract. If you might be late, call the office right away. You can’t extend a rental by phone alone; the renter and the credit card holder need to come to the office and pay for the extension.

After you return the car, a free shuttle runs from the office to Guam International Airport or your hotel. Leave enough time for refueling and the inspection so you reach check-in with time to spare. If you take a taxi instead, the fare isn’t reimbursed.

Step 2: Refuel on Return Day and Keep the Receipt

ONE’S cars go out with a full tank and should come back full. In the rare case the tank wasn’t full at pickup, return it at the same level. If you’re unsure, ask the office before you fill up. Any fuel beyond that isn’t reimbursed.

  • Standard vehicles use regular unleaded gasoline (Shell FuelSave at Shell; any Shell station is fine)
  • If your car needs a different fuel, follow the label on the fuel door and what staff tell you at pickup
  • Fill up on return day and keep the gas receipt to show at the counter when you settle up
  • Go by the pump label and your rental instructions, not just the nozzle color

If the wrong fuel is used, the current terms list a $400 NOC (non-operation charge), a $150 service fee and the cost of replacing the fuel, regardless of insurance. If you realize you’ve put in the wrong fuel, don’t start the engine. Contact the station and ONE’S.

Full fuel gauge and gas receipt ready for a Guam rental car return
Confirm the fuel level and keep the same-day receipt until the return is complete.

Step 3: Check for Sand, Mud, Moisture and Sunscreen

After a beach day, it’s easy to leave sand, wet towels and sunscreen marks behind. Remove all belongings and inspect the seats, footwells, floor mats, trunk and inside door panels.

The current terms list these condition-based cleaning charges:

  • Excessive sand: $100
  • Heavy mud, stains or dirty mats: $300
  • Orange dirt requiring detailing and deep cleaning: $450
  • Cigarette or marijuana odor: $250
  • Wet seats, sunscreen stains and similar conditions: starting at $100, depending on severity

No smoking in the car, and pets are generally not allowed. If the car needs more than a quick cleanup, check with the office before using any cleaning products.

Step 4: Check Keys, Accessories, Tickets and Personal Items

  • Make sure the key, floor mats, tools and the documents in the glove compartment are all there
  • Check for phones, wallets, passports, chargers, sunglasses and items around child seats
  • Report any parking or traffic ticket received during the rental
  • Tell staff about an accident, new damage, tire issue or warning light

The terms list charges of $200–$800, depending on the situation, for items such as a lost or wet key, missing hubcap or a battery drained through renter negligence. Once a key is reported lost, the locks are reprogrammed right away for security, so the new-key charge applies even if you find it later.

The renter must pay any violation ticket plus a $100 company service fee. The terms also list a $1,000 penalty for an unreported ticket, so contact ONE’S as soon as you receive one.

Step 5: Inspect the Vehicle with Staff

At the office, walk around the car with staff. Photos or video of the car and check sheet from pickup make it easier to tell existing marks from new damage.

For an accident or new damage such as a deep scratch or dent, the terms state that a $150 company service fee is charged to the card on file. Coverage and deductibles depend on the protection purchased and the circumstances, so ask staff to walk you through the itemized charges.

Pre-Return Checklist

  • Return time and driving time to the office are confirmed
  • The car was refueled on return day to the level and grade required by the contract
  • The gas receipt is saved
  • Sand, mud, moisture, sunscreen marks and odors were checked
  • All luggage and personal items were removed
  • The key and vehicle accessories are present
  • Tickets, accidents, damage and tire issues were reported
  • The vehicle inspection was completed with staff
  • Enough time remains for the airport shuttle

Frequently Asked Questions

Must I return the car with a full tank?

Yes, as a rule. In the rare case the tank wasn’t full at pickup, return it at the same level. Ask the office if you’re unsure. Bring a same-day gas receipt to show at return.

Can I extend the rental by phone if I am late?

No. Call the office right away, but to extend, the renter and cardholder must pay at the office. Don’t keep the car past your return time without approval.

Is there a shuttle to the airport after return?

Yes. ONE’S runs a free shuttle from the office to the airport or your hotel. Return early enough to leave time for refueling and the inspection. If you take a taxi instead, the fare isn’t reimbursed.

Summary

A smooth ONE’S return starts with checking the time, refueling on return day, keeping the receipt, cleaning out the car, confirming keys and accessories, and inspecting the vehicle with staff. A free shuttle to the airport or your hotel is available, but don’t leave it to the last minute: return the car well before your flight.

Fact-checked September 13, 2026. Rates, protection, fuel requirements and shuttle procedures may change. Follow your rental contract, the current ONE’S official site and staff instructions on the day of return.

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