When I got the car from the dealer I thing they put 10 gallons in it. This would explain why when I ran for 498 miles I had averaged 49.8 MPG and then the bladder was empty. It will take me a while to say bladder and not tank. The cool thing was that Toyota gives you $30 worth of gas when you get the car. Back in the stone ages I picked up my 25 MPG Nissan Maxima from the dealer with 1.5 miles on the odometer and the fuel light on so I had to drive out of the Nissan dealership to a gas station before I put the car in 2nd gear.