Automobiles

EPA: Hyundai, Kia Overstated Fuel Economy on Cars

Travel fewer miles per gallon than claimed

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Hyundai and Kia overstated the gas mileage on 900,000 vehicles sold in the past three years, a discovery that could bring sanctions from the U.S. government and millions of dollars in reimbursements to car owners.

The inflated mileage was uncovered in an audit of test results by the Environmental Protection Agency, which ordered the Korean automakers to replace fuel economy stickers on the affected cars. The new window stickers will have figures that are one-to-six miles per gallon lower depending on the model, the agency said Friday.

"Consumers rely on the window sticker to help make informed choices about the cars they buy," said Gina McCarthy, assistant administrator of the EPA's air-quality office. "EPA's investigation will help protect consumers and ensure a level playing field among automakers."