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The Ohio Turnpike Commission has authorized public hearings on rate hikes for most vehicles, including trucks, that use the 241-mile toll road, the Associated Press reported.

Crude oil prices pushed to more than $75 a barrel Tuesday as a third named tropical storm formed and a strong heat wave moved across the United States, Bloomberg reported.

General Motors Corp. and Ford Motor Co. each said Tuesday their July vehicle sales fell sharply from last year, with the biggest declines in trucks and sport utility vehicles, the Associated Press reported.

The average national price of retail diesel fuel continued its climb, gaining 3.4 cents from last week to $2.98 a gallon, the Energy Department reported Monday.

The U.S. Postal Service and FedEx Corp. unit FedEx Express said Tuesday they have agreed to a new contract for domestic air transportation of postal express shipments, to run through September 2013.

Refrigerated truckload carrier Frozen Food Express Industries reported Tuesday its second-quarter income fell to $2.1 million or 11 cents a share, from $5.8 million or 31 cents a year ago.

The Institute for Supply Management’s manufacturing index gained in July, the group said Tuesday.

Construction spending rose 0.3% in June, the Commerce Department said Tuesday.

Consumer personal spending rose 0.4% in June, the smallest gain this year, the Commerce Department said Tuesday.

Specialty truck maker Oshkosh Truck Corp. said Tuesday it earned $53.4 million or 72 cents a share for its third fiscal quarter ended June 30, up from $38.7 million or 52 cents a year ago.