Introduced in late 2007, the DD15 delivers up to 5 percent better fuel economy than the Series 60, largely due to its turbo compounding technology and Amplified Common Rail Fuel System (ACRS). Turbo compounding, which turns wasted exhaust gas into useble power producing up to 50 bonus horsepower without sacrificing fuel economy, is available only in the DD15. Its ACRS fuel delivery system teams up with DDEC VI electronics to create an optimized combustion event resulting in a quiet, refined operation.
The DD15 will also launch a Western Star truck up to 90 percent peak torque in 1.5 seconds because of its simple and reliable turbocharger and dual overhead cams.
The DD15's 6-cylinder, in-line design is available in output and torque
variants from 455 to 560 horsepower and 1,550 to 1,850 pounds-feet, including dual torque ratings for special applications.
More info: www.WesternStar.com