The average gas price in Banjarmasin is 15,221₫/liter over the past month, costing you anywhere between 684,964₫ and 989,392₫ 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 Banjarmasin it should be possible to rent a car for a whole month if needed.