Detroit Diesel Corporation Performs First In-Use Compliance Testing

DETROIT, Michigan – Detroit Diesel Corporation today announced that it has performed the first in-use emissions test on its Series 60® heavy-duty diesel engine. Results from the tests indicate that the engine is in good standing with the EPA standards.



“Our testing really demonstrates that Detroit Diesel is ahead of the curve when it comes to complying with the regulations and our working relationship with the EPA and the California Air Resources Board,” said Glenn Lysinger, Detroit Diesel Corporation’s Chief Compliance Officer. “Our engineering team is to be commended for the great efforts it has made to ensure these engines would remain compliant throughout their useful life.”



The U.S. Environmental Protection Agency (EPA) mandates emissions standards must be demonstrated over the useful life of the engine, which is 435,000 miles for heavy-duty diesel engines.



Detroit Diesel recently worked with an in-service truck and driver to evaluate the in-use emissions coming from a 2004 Series 60 engine. Using a portable emissions measurement system (PEMS) installed onboard the vehicle, the test demonstrates diesel emission standards are met under real-world driving conditions. During the testing, a Detroit Diesel engineer measured gaseous exhaust emissions while the customer driver drove his normally scheduled delivery route. The EPA mandated in-use emissions testing requirements include a pilot phase of testing followed by a compliance phase beginning in 2007 for on-highway engines.



According to Lysinger, test results showed that the engine, which had accumulated more than 360,000 miles before the testing was conducted, was still well within the Federal regulations, and required no preparation prior to testing outside of its regularly scheduled maintenance.



“Under the voluntary phase of this testing, we report these test results to the EPA to demonstrate our compliance,” concluded Lysinger. “We continue to work with the Engine Manufacturers Association, the EPA and the California Air Resources Board in developing in-use emissions test methods.”



Detroit Diesel Corporation is a leading manufacturer of on-highway heavy- duty diesel engines for the commercial truck market. The company offers a complete line of engines from 170 to 515 horsepower for the on-highway and vocational markets. Through its facility in Detroit, Michigan, Detroit Diesel is engaged in the design, manufacture, sale and service of these products, in addition to supporting alternative and hybrid engine strategies for the commercial truck marketplace. Detroit Diesel is a subsidiary of DaimlerChrysler AG, a part of the DaimlerChrysler Truck Group and an affiliate company of Freightliner LLC.

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