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Navistar International Corp. last week reported a $172 million loss in its second quarter, partly triggered by what its top executive said was “a lot of noise and speculation” about Environmental Protection Agency approval of its 13-liter engine, and reshuffled top management in a bid to restore profitability.

SAN DIEGO — By pulling together broad swaths of diverse data through a predictive modeling tool, carriers can uncover safety risks that probably would have gone unnoticed otherwise, fleet safety officials said.

Federal regulatory “guidance” issued last week restricted the number of oil and gas well truck drivers who can extend their workdays beyond the 14-hour federal limit under the oil-field operations exemption to hours-of-service rules.

A major coalition of freight stakeholders and Sen. Maria Cantwell (D-Wash.) have urged Transportation Secretary Ray LaHood to create a high-level intermodal freight office with a director who reports directly to him.

U.S. retail diesel prices declined for the eighth straight week as trucking’s main fuel fell 5.1 cents more to a national average of $3.846 a gallon, according to the Department of Energy.

Celadon Trucking Services said it has agreed to buy a portion of the equipment owned by Hiner Transport LLC. Terms of the deal were not disclosed.

The U.S. trade deficit shrank by 4.9% in April as a drop in imports more than offset the first exports decline in five months, the Commerce Department said Friday.

Wholesale inventories rose 0.6% in April as sales increased, the Commerce Department said Friday.