The average gas price in Ji'an is 23,299₫/liter over the past month, costing you anywhere between 1,048,443₫ and 1,514,418₫ 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 Ji'an it should be possible to rent a car for a whole month if needed.