Your choice to refill the tank or not depends on your preference. Your Bridgetown Grantley Adams Intl Airport car rental will usually offer prepaid fuel, where you pay for the full tank when booking the vehicle with no refunds for unused gas. Alternatively, you can choose to refill the tank before returning it. It would be best to know your budget and driving needs before choosing your preferred plan. A prepaid plan is an excellent option if you plan to drive more while the latter lets you alleviate extra fuel charges. Search rental cars on KAYAK