1 EXHIBIT 15 Tenneco Automotive Inc. We are aware that Tenneco Automotive Inc. has incorporated by reference in the following Registration Statements its Form 10-Q for the quarter ended June 30, 2000, which includes our report dated July 24, 2000 covering the unaudited interim financial information contained therein. Pursuant to Regulations C of the Securities Act of 1933, that report is not considered a part of the Registration Statements prepared or certified by our firm or a report prepared or certified by our firm within the meaning of Sections 7 and 11 of the Act. REGISTRATION NO. FORM - ---------------- ---- 333-24291 ............................................... S-3 333-17485 ............................................... S-8 333-30933 ............................................... S-8 333-17487 ............................................... S-8 333-41535 ............................................... S-8 333-27279 ............................................... S-8 333-23249 ............................................... S-8 333-27281 ............................................... S-8 333-41537 ............................................... S-8 333-48777 ............................................... S-8 333-76261 ............................................... S-8 333-33442 ............................................... S-8 333-33934 ............................................... S-8 Very truly yours, Arthur Andersen LLP