Detroit Diesel DD15™

Fuel economy or pulling power? Don't choose. The all new DD15™ gets up to 5% better fuel economy than the Series 60®. It is able to do this with snappier acceleration and up to 50 bonus horsepower.

Performance: A new design offers a majority of its peak torque down to 1,000 RPM. You'll treat on-ramps like drag strips. With up to 50 bonus HP, the thrill of the road is back.

Support: The revolutionary DD15 can't be described, only driven. It'll push you back into your seat. So get into your local Freightliner, Sterling or Western Star dealer and re-discover the fun of driving.
Reliability: You get Detroit Diesel's renowned reliability, plus the best performing parts and service network. The game-changing DD15™ is the ultimate workhorse.

Economy: Compared to the Series 60, which has legendary fuel economy, the DD15™ runs up to 5% more miles per gallon.