The Detroit Diesel DD15 engine is now available in Western Star trucks. Introduced in late 2007, the Detroit Diesel DD15 features strong fuel economy and torque response as well as power and performance for targeted Western Star vocational market segments. The DD15 delivers better fuel economy largely due to its turbo compounding technology and Amplifi ed Common Rail Fuel System (ACRS). Turbo compounding, which turns wasted exhaust gas into useable power, producing up to 50 bonus horsepower without sacrifi cing 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, refi ned operation. The DD15 provides up to 90 percent peak torque in one-and-a-half seconds because of its simple and reliable turbocharger and dual overhead cams. The DD15 is tailored to North America’s EPA ‘07 emissions regulations, and its advanced design means that with the addition of BlueTec SCR technology it is also ready for upcoming EPA 2010 standards. The DD15’s six-cylinder, in-line design is available in output and torque variants from 455 hp to 560 hp and 1,550 to 1,850 lb.-ft., including dual torque ratings for special applications.
