The fuel policy depends on the rental car supplier. They have it written clearly in the terms and conditions shown on our website. There is also a filter option to choose which fuel policy you prefer. The most common fuel policy is FULL TO FULL - you will receive the car with the fuel tank. To avoid fuel charges, you will need to return it with the same amount of fuel as it was given. The missing fuel will be charged on return REPURCHASE FUEL - the car will be supplied with a full tank for which you will be charged at the rental desk. You can use as much fuel as need. No refund will be given on unused fuel. Please, always check the fuel policy before you decide to rent the car. Search car rental on https://www.omancar.net/sohar-car-rental.htm