J.D. Power and Associates Reports: Caterpillar and Cummins Rank Highest in Heavy-Duty Truck Engine Customer Satisfaction
Heavy-Duty Truck Maintainers Report Fewer Engine-Related Problems
WESTLAKE VILLAGE, Calif., Oct. 16 -- In their respective segments, Caterpillar and Cummins rank highest in satisfying customers with heavy-duty truck engines and transmissions, according to the J.D. Power and Associates 2007 Heavy-Duty Truck Engine/Transmission Study(SM) released today.
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The study, now in its 11th year, measures customer satisfaction with engines in two-year-old heavy-duty trucks (Class 8) by examining four vital engine factors. They are (in order of importance): engine quality (30%); engine performance (26%); engine cost of ownership (22%); and engine warranty (22%). The 2007 study includes engines equipped in 2005 model-year trucks, the second model year impacted by the Consent Decree that raised diesel engine emission standards. Customer satisfaction with heavy-duty truck engines is measured in the Vocational segment -- defined as truck body types used in rugged job applications, such as dump trucks, concrete mixers, and garbage/refuse recycling trucks -- and the Pickup and Delivery segment. Pickup and delivery trucks are defined as non-vocational day cabs, typically used for city stop-and-go applications with a return to home base each night.
Cummins ranks highest in customer satisfaction in the heavy engine vocational segment with an overall index score of 750 on a 1,000-point scale. Cummins performs particularly well in the engine warranty, engine performance and cost of ownership factors. Caterpillar closely follows Cummins in the segment with a score of 747, performing particularly well in engine quality.
Caterpillar ranks highest in customer satisfaction in the heavy engine pickup and delivery segment with an index score of 754, performing well across each of the four engine factors. Caterpillar performs particularly well in the engine quality and engine performance factors.
The study also finds that heavy-duty truck maintainers are reporting fewer problems with their engines than they did in 2006 -- although problem incidence remains much higher than with pre-emission regulation 2003 model- year trucks. Industrywide, the average number of reported engine problems is 59 PP100 (engine problems per 100 vehicles) -- down from an average of 70 PP100 in 2006, but still well above the average of 46 PP100 reported prior to the new emission standards.
Several engine components show year-over-year quality improvements in the 2007 study. Two of the biggest improvements are for fuel injectors and turbochargers, which experienced large declines in quality in the 2006 study. Problem mentions for each of these components have declined by nearly 50 percent in 2007.
The most frequently cited engine problem for a second consecutive year is the exhaust gas recirculation (EGR) valve, which accounts for 17 percent of all engine-related problems reported -- a slight increase compared to the 2006 study.
"We saw a large jump in problems from 2005 to 2006 as manufacturers introduced new technologies to meet the emissions regulations," said Brian Etchells, senior research manager in the commercial vehicle group at J.D. Power and Associates. "New technologies always introduce the possibility for more problems, so we were not surprised to see that in 2006. As expected, in 2007, we're now starting to see those problem counts gradually decline."
The study finds that customers are most satisfied with the performance of their engines, and least satisfied with the costs of ownership. In general, customers are dissatisfied with both the fuel economy of their heavy engines and with the cost of routine engine maintenance.
"New emission technology adds to the initial price of an engine, and also adds to the cost of maintenance through additional filters and components that need to be serviced," said Etchells. "Moving forward, an engine manufacturer that develops an emission technology that requires less maintenance or provides better fuel economy compared to competitors could really differentiate itself in the marketplace. It will be interesting to see how the different approaches employed by engine manufacturers to meet the increasingly strict emission regulations fulfill customer expectations for engine performance, quality and ownership costs."
The 2007 Heavy-Duty Truck Engine/Transmission Study is based on the responses of 2,677 primary maintainers of two-year-old heavy-duty trucks (Class 8).
About J.D. Power and Associates
Headquartered in Westlake Village, Calif., J.D. Power and Associates is an ISO 9001-registered global marketing information services firm operating in key business sectors including market research, forecasting, performance improvement, training and customer satisfaction. The firm's quality and satisfaction measurements are based on responses from millions of consumers annually. For more information on cell phone ratings, car reviews and ratings, car insurance, health insurance and more, please visit JDPower.com. J.D. Power and Associates is a business unit of The McGraw-Hill Companies.
About The McGraw-Hill Companies
Founded in 1888, The McGraw-Hill Companies is a leading global information services provider meeting worldwide needs in the financial services, education and business information markets through leading brands such as Standard & Poor's, McGraw-Hill Education, BusinessWeek and J.D. Power and Associates. The Corporation has more than 280 offices in 40 countries. Sales in 2006 were $6.3 billion. Additional information is available at http://www.mcgraw-hill.com/.
J.D. Power and Associates Media Relations Contacts: John Tews Syvetril Perryman Troy, Mich. Westlake Village, Calif. (248) 312-4119 (805) 418-8103 john.tews@jdpa.com syvetril.perryman@jdpa.com
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Customer Satisfaction Index Ranking Pickup and Delivery Segment (Based on a 1,000-point scale) Caterpillar 754 Pickup and Delivery Segment Average 724 Cummins 721 Mack 708 Mercedes-Benz 694
Included in the study, but not ranked due to small sample size, are: Detroit Diesel and Volvo.
Customer Satisfaction Index Ranking Vocational Segment (Based on a 1,000-point scale) Cummins 750 Caterpillar 747 Mercedes-Benz 737 Vocational Segment Average 727 Mack 682
Included in the study, but not ranked due to small sample size, are: Detroit Diesel and Volvo.
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