Registration No. 333-65909 As filed with the Securities and Exchange Commission on March 4, 2003 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ----------------- POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 PENNZOIL-QUAKER STATE COMPANY (Exact name of registrant as specified in its charter) DELAWARE 76-0200625 (State or other jurisdiction (IRS Employer of incorporation) Identification Number) P.O. Box 2967 Houston, TX 77252-2967 (713) 546-4000 (Address, including zip code, and telephone number, including area code, or registrant's principal executive offices) William C. Lowrey Vice President and General Counsel Pennzoil-Quaker State Company 910 Louisiana Houston, TX 77006 (713) 241-6161 (Name, address, including zip code, and telephone number, including area code, of agent for service) Pursuant to a Registration Statement on Form S-3, Registration No. 333-65909, effective October 20, 1998, Pennzoil-Quaker State Company (the "Company") registered for sale from time to time an indeterminate amount of (1) unsecured debt securities consisting of senior notes and debentures and subordinated notes and debentures, and/or other unsecured evidences of indebtedness in one or more series; (2) shares of common stock; (3) shares of preferred stock, in one or more series, which may be convertible into or exchangeable for common stock or debt securities; and (4) warrants to purchase debt securities, preferred stock, common stock or other securities (the "Securities"), up to a total aggregate initial offering price for all such Securities combined not to exceed $1,000,000,000 (the "Shelf Registration"). The Company hereby withdraws from registration all such Securities remaining unsold under the Shelf Registration as of the date of this Post-Effective Amendment No. 1. 2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Post Effective Amendment No. 1 to this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Houston, State of Texas, on March 3, 2003. Pennzoil Quaker-State Company By: /s/ D.J. Pirret ------------------------------ D.J. Pirret President Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 1 to this Registration Statement has been signed by the following persons in the capacities and on the dates indicated. NAME TITLE DATE - ---- ----- ---- Chairman, President, Chief Executive /s/ D.J. Pirret Officer and Director (principal March 3, 2003 - ------------------ executive officer) D.J. Pirret Vice President, Chief Financial Officer, Treasurer and Director /s/ D.J. Palmer (principal accounting and finance March 3, 2003 - ------------------- officer) D.J. Palmer 3