Demand Information - Demand Detroit®

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A Cylinder Kit Design Optimized for Fuel Economy
The new Optimized Cylinder Kit Design reduces friction and oil consumption, leading to improved durability and fuel economy. It is one of the big contributing factors to the DD15 engine meeting 2013 OBD (OBD13) and 2014 Greenhouse Gas (GHG14) regulations. Read More
Asymmetric Turbocharger for Improved Performance
As we continue our exploration of the new and improved DD15® engine, we wanted to dedicate a whole post to the new Proprietary Asymmetric Turbocharger, which is a huge contributing factor to the overall reliability, durability, and performance of the engine. Read More
Variable Speed Water Pump: Designed for Efficiency
First and foremost, the Variable Speed Water Pump reduces parasitic power losses, thereby increasing fuel economy. It features a viscous clutch between the pulley and impeller drive, allowing the engine to command reduced impeller speed when other engine conditions allow it. Read More
The New DD15®: Redefining the Road
The new DD15 is redefining the road. Our engineers re-examined then re-designed many features of the DD15 to reach this new standard. Open the hood of the Freightliner Cascadia Evolution truck and you’ll find an engine that delivers amazing performance, durability, and reliability. Read More
Demand it All Again With the DT12™ Transmission
The DT12 is currently available with all Cascadia Evolution running the DD15® engine and is soon to be available in Cascadia’s with the DD13® Engine. This engine and transmission combo is special because, being built by the same manufacturer under the same roof, their electronics speak to each other. Read More
HDE Assembly Line: The Heartbeat of Detroit
The HDE Assembly Line builds quality into every engine that bears the Detroit name. With best-in-class fuel economy and low-cost maintenance and service, our engines perform for a million miles and then some. Read More
Hot Testing Detroit™ Engines to Ensure Peak Performance
The Performance Hot Test, which is actually a series of tests, is performed while the engine is running and is the only truly effective way to verify horsepower, pressures, temperatures, turbo speed and vibration as well as the performance of the air, oil and coolant systems. Read More
The Pilot Center: Where Real World Testing Begins
The Pilot Center is where real world testing of engines, hardware and aftertreatment systems take place—on the road, in every operating cycle and under every conceivable condition. Read More
Testing & Validating Products in the Engineering Lab
The Engineering Lab is broken up into different sections. In the Assembly Room, our team builds test engines, measures and puts instrumentation on parts, and whatever else is required by engineering to prepare for testing. Read More
Diesel Fuel Injection: Innovating to Boost Fuel Economy
Now more than ever, Detroit’s Amplified Common Rail Fuel System (ACRS®) improves performance by cutting emissions without draining fuel mileage or power. It improves throttle response while helping to lower emissions, noise, vibrations and fuel consumption. Read More
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