The average gas price in Izmit is 22,607₫/liter over the past month, costing you anywhere between 1,017,302₫ and 1,469,435₫ 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 Izmit it should be possible to rent a car for a whole month if needed.