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Chevron Corp. posted disappointing profits after slumping values for some long-held fields hurt the oil giant’s ability to take full advantage of surging energy prices.

The ������ý Depot on Jan. 27 named veteran executive Edward "Ted" Decker as its new CEO.

Caterpillar’s sales surged in the final quarter of the year despite ongoing disruptions in the global supply chain that have hit almost every sector of the economy.

Most experts say that detecting and dealing with refrigerant leaks is the biggest challenge in regular maintenance of air conditioning systems on Class 8 tractors. For that reason, regular maintenance on the systems is critical.

PITTSBURGH — A 50-year-old bridge collapsed in Pittsburgh early Jan. 28, requiring rescuers to rappel nearly 150 feet and form a human chain to reach occupants of a bus that had plummeted with the span into a park ravine.

Mack Trucks Inc. is manufacturing a four-axle, heavy-duty dump truck for the U.S. Army that is offered with either a standard cab with a special, poison gas-resistant coating or a heavily armored cab.

Having the right part for the right job is the essential tenet for any technician performing maintenance. Trucks can’t move if they’re not operating properly. This is the theme for this quarter’s Calibrate as we explore the details of equipment maintenance and provide a larger perspective of what it entails for the trucking industry.

A professional answers our questions about challenge and innovations in his department.

A D.C. court of appeals ruling exempts trailers from federal greenhouse gas and fuel-­efficiency rules, but California mandates will create the same technology standards for many fleets, while others are adopting the technology because of the economic case for it.

The U.S. Department of Transportation on Jan. 27 released a multibillion-dollar plan that calls for actions to address what it called “a national crisis in roadway fatalities and serious injuries.”