The original contract, awarded in the first quarter of 2024, included a base order of 550 Xcelsior 40-foot, clean-diesel transit buses to be delivered in three distinct lots, along with options for an ...

Raleigh-Durham International Airport had planned to phase out diesel buses but now aims for a mix for reliability reasons.

The Nebraska Department of Environment and Energy’s 2024 Clean Diesel Rebate Program is accepting applications for two types of rebates: diesel school bus replacements and medium- to heavy-duty diesel ...

Areli Sanchez’s daughter, Aida, used to be one of 20 million American kids who ride a diesel bus to school each day. Aida has asthma. When she was little, she complained about the smell and cloud of ...

Diesel engines are more durable by their very nature, and these ones are practically unkillable.

The death knell has been ringing for diesel engines over the last decade, primarily because of their environmental impact. But some still swear by diesels for their abundant torque, efficiency, and ...

Internal combustion engine blowby, whether gasoline or diesel, occurs when part of the compressed mixture of air and fuel leaks past the piston rings during the compression or power strokes of a ...

Detroit Diesel was once one of the most prolific engine builders out there. But its success didn't last forever, leaving it in a very different position today.