Exhibit 99.3

                            Certification pursuant to
                             18 U.S.C. Section 1350,
                             as adopted pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Annual Report of Octel Corp. (the "Company") on Form 10-K
for the period ending December 31, 2002 as filed with the Securities and
Exchange Commission on the date hereof (the "Report"), I, Paul W Jennings, Vice
President and Chief Financial Officer of the Company, certify, pursuant to 18
U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that:

          (1)  The Report 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 Company.

/s/ Paul W Jennings
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Paul W Jennings
Vice President and Chief Financial Officer
March 28, 2003