the truck had 1/2 a gallon at pick up, got to orlando almost on E, refilled it and got home..only used 1/2 a tank both each trip. I filled my car tank up, drove to the hotel, then disney, was a 1/4 tank when i refilled it for the ride home. was at a 1/4 when i got here....used about 3/4 each way....thats like 12 gallons