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Engineering for 2010 and Beyond

Advanced Doesn’t Mean Complicated

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Step inside our state-of-the-art facility to learn how the UAW and Detroit Diesel build the DD15™.

Billions of Miles of Innovation

With 70 years of reliable engines under our belt, we know what works and what doesn’t. Everything we’ve ever done as a company has led to the development of this engine. We took what we learned from our successes and failures to design our most reliable, fuel-efficient and powerful engine yet.

2010 Is Just Around the Bend

You’re not just buying an engine today. You’re looking for an engine for years to come. We designed the DD15™ as an engine that fleets can rely on for whatever comes next. Training investments you make in the DD15 will pay off when EPA 2010 regulations come in, and the DD15 will change only with the addition of the After-Treatment System.

The Knock on NOx

The thing about reducing NOx emissions in the past has always been the way it drains fuel mileage and/or power. With our new Amplified Common Rail System (ACRS), we’ve cut NOx emissions without the drain on fuel mileage or power. The “amplified” in ACRS means that peak pressure is reached only at each point of injection, maximizing the combustion potential of each high capacity cylinder. This electronically-optimized fuel delivery actually changes the pressure, the timing and the spray for every injection, to every cylinder, every second the engine is performing. This creates incredibly effective combustion for each and every revolution. Not only does this maximize your performance within the cylinders, but reduces deposits like soot and carbon, resulting in fewer Aftertreatment Device (ATD) regenerations.

“It pulls good. Very, very little engine noise. Couldn’t even hear the Jake Brake.”

Mitchel Graus, Fleet Driver, 19 Years

Integration and Simplification

The DD15 is the only engine launched in recent history to use decades of real-world reliability when redesigning from scratch. Since we didn’t retrofit an old engine, we built the DD15 to work simply, to get the most out of every drop of fuel, and to do so with less maintenance and heavier workloads.

The Resurgence of Turbo Compounding

The fuel-stretching technology behind Turbo Compounding has been around since it powered the U.S. bombers deep into enemy territory. By recycling “waste heat” from the turbo, the DD15 turbo compounding system adds up to 50 free horsepower with zero extra fuel.

A Sound That’s All Purr

The DD15 is unlike any other engine you’ve ever heard. By using the Amplified Common Rail System (ACRS), the stroke is a series of smaller combustions. Think of it like fireworks: several small ones go off pretty quietly compared to one really loud one. That refined technology makes the DD15 quieter in the cab and on the road. Because you want to feel the power, not hear the power for 10 hours a day.

Find the DD15 in:

  • Freightliner Trucks

  • Sterling Trucks

  • Western Star Trucks


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