1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 1999 THE LUBRIZOL CORPORATION (Exact name of registrant as specified in its charter) OHIO 1-5263 34-0367600 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 29400 Lakeland Boulevard Wickliffe, OH 44092-2298 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (440) 943-4200 N/A (Former name or former address, if changed since last report) 2 Item 5. Other Events. On March 31, 1999, The Lubrizol Corporation and Exxon Corporation announced the settlement of all intellectual property litigation between the two companies and their affiliates, except for litigation in Canada. The foregoing description is qualified in its entirety by reference to Lubrizol's press release of Lubrizol and Exxon dated March 31, 1999, a copy of which is attached as Exhibit 99 hereto and incorporated by reference herein in its entirety. Item 7. Financial Statements and Exhibits (c) Exhibits 99 Lubrizol's press release dated March 31, 1999. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. THE LUBRIZOL CORPORATION By: /s/ Gregory P. Lieb Gregory P. Lieb Chief Accounting Officer and Duly Authorized Signatory of The Lubrizol Corporation Date: April 1, 1999 3 EXHIBIT INDEX Exhibit No. 99 Lubrizol's press release dated March 31, 1999.