Tenneco Automotive Inc. (ticker: TEN, exchange: New York Stock Exchange) News Release

September 21, 2004

 
TENNECO AUTOMOTIVE TO LAUNCH SERIES PRODUCTION OF SILENCERS WITH INTEGRATED SELECTIVE CATALYTIC REDUCTION (SCR) TECHNOLOGY

First systems to appear on Mercedes-Benz Actros commercial vehicles in 2005

HANOVER,GERMANY/LAKE FOREST, ILLINOIS, September 21, 2004 - Tenneco Automotive (NYSE: TEN) announced today that it is one of the first companies in the world to integrate a catalytic converter and exhaust silencing components in one unit for commercial vehicles.

The company developed a silencer that meets demanding acoustics, backpressure and flow distribution requirements necessary to make DaimlerChrysler's SCR system compliant with both Euro 4 emissions regulations and acoustics limits. This includes the integration of the SCR catalyst into the silencer, and the distribution of exhaust gas on the catalyst to meet the conversion rate for Euro 4 emissions standards. The SCR system also uses the first ever application of isothermic canning of fully-extruded substrates. In addition, Tenneco Automotive applied its experience in advanced acoustics engineering and catalytic converter canning technology to overcome space limitations in integrating the acoustic components.

"The SCR technology responds to the commercial vehicle industry's criteria that NOx emission reduction solutions be both environmentally effective and economically viable," said Mark P. Frissora, chairman and CEO of Tenneco Automotive. "We successfully leveraged our experience in advanced passenger car emission control technologies in the commercial vehicle segment for the first time on this important platform."

"Tenneco Automotive is well-positioned to grow in the commercial vehicle market with the addition of emission control content to our existing ride control and elastomer products for this sector," said Frissora. "The Actros business reflects the market share growth we expect to see as a result of establishing a new business unit dedicated to the commercial and specialty vehicle markets."

SCR technology has been shown to reduce nitrogen oxides (NOx) emissions in diesel engines, making them compliant with the strict Euro 4 emissions limits well in advance of the October 2006 deadline for compliance. The system works by injecting precise quantities of urea solution into the exhaust gases where it is converted to ammonia. The ammonia then converts noxious nitrogen oxides to harmless nitrogen and water vapour. DaimlerChrysler has already announced plans to use SCR technology to reach the Euro 5 standards that come into effect in 2009.

The development and engineering for the Actros is being done at Tenneco Automotive's engineering centre in Edenkoben, Germany, and production will take place at its exhaust manufacturing facility in Zwickau, Germany.

Tenneco Automotive is a leader in developing and producing advanced exhaust after treatment systems that help vehicle manufacturers meet increasingly stringent emissions regulations. The company was one of the first to manufacture diesel particulate filters for passenger car applications in series production in 2000. Today it produces more than 300,000 units annually.

Tenneco Automotive is a $3.8 billion manufacturing company with headquarters in Lake Forest, Illinois and approximately 19,200 employees worldwide. Tenneco Automotive is one of the world's largest designers, manufacturers and marketers of emission control and ride control products and systems for the automotive original equipment market and the aftermarket. Tenneco Automotive markets its products principally under the Monroe®, Walker®, Gillet® and Clevite® Elastomer brand names. Among its products are Sensa-Trac® and Monroe Reflex® shocks and struts, Rancho® shock absorbers, Walker® Quiet-Flow® mufflers, Dynomax® performance exhaust products, and Clevite® Elastomer noise, vibration and harshness control components.

This press release contains forward-looking statements. Words such as "will", "expects" and similar expressions identify forward-looking statements. These forward-looking statements are based on the current expectations of the company (including its subsidiaries). Because these forward-looking statements involve risks and uncertainties, the company's plans, actions and actual results could differ materially. Among the factors that could cause these plans, actions and results to differ materially from current expectations are: (i) the general political, economic and competitive conditions in markets and countries where the company and its subsidiaries operate, including currency fluctuations and other risks associated with operating in foreign countries; (ii) changes in automotive manufacturers' production rates and their actual and forecasted requirements for the company's products, including the company's resultant inability to realize the sales represented by its awarded book of business; (iii) changes in consumer demand and prices, including decreases in demand for automobiles which include the company's products, and the potential negative impact on the company's revenues and margins from such products; (iv) the cost of compliance with changes in regulations, including environmental regulations; (v) workforce factors such as strikes or labor interruptions; (vi) material substitutions and increases in the costs of raw materials; (vii) the company's ability to develop and profitably commercialize new products and technologies, and the acceptance of such new products and technologies by the company's customers; and (xviii) the timing and occurrence (or non-occurrence) of transactions and events which may be subject to circumstances beyond the control of the company and its subsidiaries. The company undertakes no obligation to update any forward-looking statement to reflect events or circumstances after the date of this press release.


CONTACT:
Tenneco Automotive, Media Relations
Jane Ostrander
(1) 847 482 5607
jane.ostrander@tenneco-automotive.com

Tenneco Automotive, Media Relations - Europe
Margie Pazikas
32 (0) 2 706 9470
margie.pazikas@eu.tenneco-automotive.com

Tenneco Automotive, Investor Relations
Leslie Hunziker,
847/482-5042
leslie.hunziker@tenneco-automotive.com

 

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