Watch Out – gas charges could be a total budget buster! You are probably well aware that rental car companies offer you a full tank of gas at a relatively fair prices when you pick up your rental car. But you probably are not aware of the exorbitant prices they charge if you return your rental car without an absolutely full tank. $9 a gallon or more!!!!! And they have a new trick to catch you – many rental companies now require you to present a gas receipt within 5 miles of the drop off location to PROVE that you just topped off the tank. If you don’t provide the receipt you may find a charge for several gallons of gas even though you considered the car to have a full tank. So renters be aware – either purchase the full tank of gas if you think you will use it all, or be certain that you return the car with a full tank of gas AND a receipt.