FILE - In this Tuesday, May 19, 2009, file photo, Larry Warner pressure tests lines for the turbocharger on Ford's EcoBoost V-6 at Cleveland Engine Plant No. 1 in Brook Park, Ohio.

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FILE - In this Tuesday, May 19, 2009, file photo, Larry Warner pressure tests lines for the turbocharger on Ford's EcoBoost V-6 at Cleveland Engine Plant No. 1 in Brook Park, Ohio. Consumer Reports is warned car buyers on Tuesday, Feb. 5, 2013, that turbocharged engines may not deliver the speed or fuel economy they expect. (AP Photo/Mark Duncan) less