5. Ford Expedition EL Eddie Bauer: $131.32
With the Ford Expedition, we’ve now entered the $130 a tank zone. This flex-fuel vehicle costs $131.32 to fill up, which is certainly a terrifying figure to see on a gas pump. Whats the Expeditions excuse? It doesn’t use diesel, or premium fuel; but has a massive gas tank. A capacity of 33.5 gallons helps put the Expedition at number 5 on this list.