🔧 Detroit DD15 Engine
The Detroit DD15 is a 14.8-litre inline-six diesel built by Daimler's Detroit Diesel subsidiary, standard equipment in the Freightliner Cascadia and Western Star trucks. Its Turbo Compound variant routes exhaust energy through a second turbine back to the crankshaft, reducing fuel consumption by 3–4% versus conventional turbocharging.
Engine
المواصفات التقنية
| Type | Inline-6 Diesel (SOHC with Turbo Compound option) |
|---|---|
| Displacement | 14.8 L |
| Horsepower | 400–505 hp |
| Torque | 1,966–2,305 Nm |
| Emissions | EPA 2010 / GHG17 |
| Aftertreatment | EGR + DPF + SCR |
| Oil Capacity | 34 L |
| Fuel System | DDEC Common Rail |
| Manufacturer | Detroit Diesel Corp., Detroit MI (Daimler AG) |
| Msrp | $30,000–$48,000 (new engine) |