2012 Heavy-Duty Truck Engine Ratings

Award Recipient: Detroit Diesel

	Overall Satisfaction?
Detroit Diesel	5
Caterpillar	3
Cummins	4
Mack	3
Navistar	2
Paccar	3
Volvo	3
Scoring Legend Among the best Better than most About average The rest
*Please note that jdpower.com Ratings may not include all information used to determine J.D. Power and Associates awards. Learn more about how J.D. Power Circle Ratings are calculated.

2012 U.S. Heavy-Duty Truck Engine and Transmission Study

08/23/2012

Technology changes related to revised emissions standards for heavy-duty trucks are causing an increase in heavy-duty truck engine problems and a decrease in overall satisfaction with the powertrain, according to the J.D. Power and Associates 2012 U.S. Heavy-Duty Truck Engine and Transmission Study^SM released today. More