Exhibit 32.1
THE LUBRIZOL CORPORATION
Certification of Chief Executive Officer and Chief Financial Officer of
The Lubrizol Corporation Pursuant to 18 U.S.C. Section 1350
I certify that, to the best of my knowledge and belief, the Annual Report on Form 10-K/A of The Lubrizol Corporation for the period ended December 31, 2006:
| | (1) | | fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| |
| | (2) | | the information contained in the report fairly presents, in all material respects, the financial condition and results of operations of The Lubrizol Corporation. |
| | | |
| /s/ James L. Hambrick | | |
| | |
| Chief Executive Officer and President | | |
| November 9, 2007 | | |
I certify that, to the best of my knowledge and belief, the Annual Report on Form 10-K/A of The Lubrizol Corporation for the period ended December 31, 2006:
| | (1) | | fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| |
| | (2) | | the information contained in the report fairly presents, in all material respects, the financial condition and results of operations of The Lubrizol Corporation. |
| | | |
| /s/ Charles P. Cooley | | |
| | |
| Chief Financial Officer | | |
| November 9, 2007 | | |
