Rent a car trap to avoid

Don’t prepay for gasoline when you rent a car at an airport.

Rental-car employees often urge travelers to prepay for a tank of gas when renting a car. Reality: Most off-airport gas stations charge less than rental car firms do.

And people who prepay get no refund for gas left in the cars when they return them.

Better: Fill up the gas tank on your own before returning the car.

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