The average gas price in Kinmen is 24,180 ₫/liter over the past month, costing you anywhere between 1,088,119 ₫ and 1,571,728 ₫ to fill up a car’s gas tank.
The length of time you can book a rental for is subject to the inventory of the supplier. When renting a vehicle from Kinmen it should be possible to rent a car for a whole month if needed.