Photo: Even Modest Increases in MPG Can Equal Big Gas Savings



A woman counts cash after filling up her Cadillac Escalade SUV at a gas station in Santa Monica, California, on June 27, 2008.

A new study says that consumers should be made more aware that trading in cars with poor fuel efficiency for ones that get only somewhat better mileage can still equal huge savings.

Photograph by Reed Saxon/AP


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