LAKE FOREST, ILLINOIS, APRIL 5, 2006 - Tenneco (NYSE: TEN) plans to issue its first quarter 2006 earnings news release before the market opens on Thursday, April 27, 2006 and hold a conference call the same day at 10:30 a.m. EDT. The purpose of the call is to discuss the company's results of operations for the last fiscal quarter, as well as other matters that may impact the company's outlook.

News Release:
Before the market opens on Thursday, April 27, 2006. The news release will be sent by email and fax to the Tenneco investor distribution list and will be available on First Call, PRNewswire and the Tenneco website.

Conference Call:
Thursday, April 27, 2006
The conference call will be hosted by Mark Frissora, chairman and CEO and Ken Trammell, executive vice president and chief financial officer.

Time:
10:30 a.m. Eastern time
9:30 a.m. Central time

Phone Numbers:
888-790-1408 (domestic)
773-756-0157 (international)

Pass Code:
TENNECO

Conference Leader:
Leslie Hunziker

Call Playback:
Available one hour following completion of the call on Thursday, April 27, 2006 through May 27, 2006. Call 866-422-8164 (domestic) or 203-369-0833 (international).

Website Broadcast:
www.tenneco.com
For a "listen only" broadcast, go to the company's website and select the "live web cast" link. Please go to the website at least 15 minutes prior to the start of the call to register and download and install any necessary audio software. A replay of this call will also be available on the Tenneco web site through May 27, 2006.

Accompanying slides will also be available on the financial section of the Tenneco website at www.tenneco.com.

Tenneco is a $4.4 billion manufacturing company with headquarters in Lake Forest, Illinois and approximately 19,000 employees worldwide. Tenneco 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 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.

CONTACT:
Tenneco Media Relations
Jane Ostrander
(1) 847 482 5607
jostrander@tenneco.com

Tenneco Investor Relations
Leslie Hunziker
(1) 847 482 5042
lhunziker@tenneco.com