Engineering for 2010 and Beyond
Advanced Doesn't Mean Complicated

Step inside our state-of-the-art facility to learn how the UAW and Detroit Diesel build the DD15® engine.
Billions of Miles of Innovation
With 70 years of reliable engines under our belt, we know what works and what doesn't. We took what we learned from our successes and failures to design reliable, fuel-efficient and powerful engines.
Built for 2010 and Beyond
You're not just buying an engine today. You're looking for an engine for years to come. We design engines that fleets can rely on for whatever comes next.
The Knock on NOx
In the past, reducing NOx emissions has always drained fuel mileage and/or power. With our newest Detroit Diesel engines, we've cut NOx emissions without the drain on fuel mileage or power. The "amplified" in ACRS means full injection pressure capability is achieved by amplifying engine fuel rail pressure internally in the injector. The engine's 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 to maximize your performance within the cylinders, and reduce 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
Simplification
We don't retrofit old engines. We build Detroit Diesel engines to work simply, get the most out of every drop of fuel, and do it all with less maintenance and heavier workloads. We design from the ground up to make oil filters, and other things you have to replace regularly, above the frame rail, so they're within easy reach.
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 Detroit Diesel engines with turbo compounding system adds up to 50 "bonus" horsepower with zero extra fuel.
A Sound That's All Purr
Detroit Diesel's are unlike any other engine you've ever heard. Our completely electronic injectors use a series of injections to reduce noise. Think of it like fireworks: several small ones go off pretty quietly compared to one really loud one. That refined technology makes Detroit Diesel engines quieter in the cab and on the road. Because you want to feel the power, not hear the power for 10 hours a day.