EPA 2007 Emissions
The Power of Green
When you hit the road with a Detroit Diesel DD15® engine, you're driving the first one designed with integrated EPA 2007 technologies, and that is 2010-ready. And best of all, it meets EPA 2007 without the traditional trade-offs between lower emissions and worse fuel economy and power.
Amplified Common Rail Fuel System

Reducing NOx emissions in the past has always meant reduced fuel mileage and/or power. With the DD15's fuel system, we've cut NOx emissions without the drain on fuel mileage or power. The "amplified" in ACRS means that full injection pressure capability is achieved by amplifying engine fuel rail pressure internally in the injector. The engine's electronically-optimized fuel delivery actually perfects the pressure, the timing and the spray for every injection, to every cylinder, every second the engine is performing. This also reduces deposits like soot and carbon, resulting in fewer Aftertreatment Device (ATD) regenerations.
“We’ve cut emissions without the drain on fuel mileage or power.”

The EGR cooler dilutes the air/fuel mixture with cooler exhaust gas, which helps reduce the formation of NOx.
The Diesel Oxidation Catalyst burns off exhaust to create soot.
Burned off soot is trapped in the Diesel Particulate Filter.
Tailpipe emissions meet EPA 2007 requirements.
Click on the numbers above to learn how
the DD15 cuts emissions without losing power.
New Exhaust Aftertreatment System
Without a doubt, the biggest upgrade to the 2007 Series 60® and MBE 4000 is the addition of an exhaust Aftertreatment System, which replaces the muffler assembly. The Aftertreatment System greatly reduces exhaust emissions and is precisely controlled by proven DDEC® VI electronics.
New Advanced Fuel System
The high performance fuel system for the Series 60, MBE 4000 and MBE 900 includes high-pressure, dual solenoid injectors that provide exact fuel metering and enable independent injection pressure control. This system has multiple injection capability to maintain the performance and fuel economy advantages you expect from Detroit Diesel.
Optimized EGR
A small amount of exhaust gas is recirculated back into the intake manifold to dilute the incoming air/fuel mixture. An innovative EGR cooler ensures that temperatures stay in the range that helps reduce the formation of NOx gases.
To improve reliability and durability on the Series 60, the EGR sits on the cool side of the engine. We also use a tube-and-shell EGR cooler that is more durable.