FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549	OMB APPROVAL
	INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940	OMB Number: 3235-0104 Expires: January 31, 2005 Estimated average burden hours per response. . .0.5 Filed By Romeo and Dye's Section 16 Filer www.section16.net

1. Name and Address of Reporting Person* Marcus, Annora C.	2. Date of Event Requiring Statement Month/Day/Year 4/28/2003	4. Issuer Name and Ticker or Trading Symbol The Lubrizol Corporation LZ
(Last)      (First)     (Middle) 29400 Lakeland Boulevard	3. I.R.S. Identification Number of Reporting Person, if an entity (voluntary)	5. Relationship of Reporting Person(s) to Issuer (Check all applicable)     Director                          10% Owner X Officer                            Other (give title below)              (specify below) Assistant Secretary	6. If Amendment, Date of Original (Month/Day/Year)
(Street) Wickliffe, OH 44092			7. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person     Form filed by More than One Reporting Person
(City)     (State)     (Zip)	Table I — Non-Derivative Securities Beneficially Owned

1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Shares	606.1223	I	Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5(b)(v).

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number

FORM 3 (continued) Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/ Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (Right to Buy)	(1)	03/24/2007	Common Shares	300	$33.75	D
Employee Stock Option (Right to Buy)	(1)	03/23/2008	Common Shares	500	$37.7813	D
Employee Stock Option (Right to Buy)	(1)	03/22/2009	Common Shares	250	$21.3438	D
Employee Stock Option (Right to Buy)	(1)	03/27/2010	Common Shares	1,000	$28.125	D
Employee Stock Option (Right to Buy)	(1)	03/26/2011	Common Shares	1,000	$30.365	D
Employee Stock Option (Right to Buy)	(1)	03/25/2012	Common Shares	1,000	$34.075	D
Employee Stock Option (Right to Buy)	(1)	03/24/2013	Common Shares	1,000	$30.335	D

Explanation of Responses:

(1) Options vest 50% one year after grant date, 75% two years after grant date and 100% three years after grant date.

By: /s/ Annora C. Marcus by Leslie M. Reynolds
              
**Signature of Reporting Person 04/30/2003
Date

**Intentional misstatements or omissions of facts constitute Federal Criminal Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed.
          If space is insufficient, See Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.