This 2011 Cascadia with EPA 2010 DD15 engine, above, is a customer demo unit already in revenue service. We drove it first. We liked it a lot. Hirschbach and Aurora Innovation have inked a non-binding ...

There are a few companies you should probably look into if you are in the market for some serious power for a heavy-duty vehicle, and one of them is most certainly Detroit Diesel. This company has ...

After nearly five years and $1.5 billion in development, the new heavy-duty Detroit Diesel DD15 engine was unveiled today at the Detroit Diesel plant in Redford, Mich. The DD15 displaces 14.8 liters, ...