UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
( ) Check this box if no longer subject to Section 16.
Form 4 or Form 5 obligations may continue. See Instructions 1(b).
1. Name and Address of Reporting Person
   Bares, William G.
   29400 Lakeland Boulevard
   Wickliffe, OH  44092
2. Issuer Name and Ticker or Trading Symbol
   The Lubrizol Corporation
   LZ
3. IRS or Social Security Number of Reporting Person (Voluntary)

4. Statement for Month/Year
   03/31/01
5. If Amendment, Date of Original (Month/Year)

6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
   (X) Director ( ) 10% Owner (X) Officer (give title below) ( ) Other
   (specify below)
   Chairman, President and Chief Executive Officer
7. Individual or Joint/Group Filing (Check Applicable Line)
   (X) Form filed by One Reporting Person
   ( ) Form filed by More than One Reporting Person


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 Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned                                                 |
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1. Title of Security       |2.    |3.    |4.Securities Acquired (A)         |5.Amount of        |6.Dir |7.Nature of Indirect       |
                           | Transaction |  or Disposed of (D)              |  Securities       |ect   |  Beneficial Ownership     |
                           |      |      |                                  |  Beneficially     |(D)or |                           |
                           |      |    | |                  | A/|           |  Owned at         |Indir |                           |
                           | Date |Code|V|    Amount        | D |    Price  |  End of Month     |ect(I)|                           |
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Common Shares              |3/9/01|M   | |24,000            |A  |$21.3438   |                   |      |                           |
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Common Shares              |3/9/01|F   | |15,394            |D  |$33.2750   |132,317.4972       |D     |                           |
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Common Shares              |      |    | |                  |   |           |9,682.6345 (1)     |I     |Trust                      |
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 Table II -- Derivative Securitites Acquired, Disposed of, or Beneficially Owned                                                   |
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1.Title of Derivative |2.Con-  |3.   |4.    |5.Number of De |6.Date Exer|7.Title and Amount  |8.Price|9.Number    |10.|11.Nature of|
  Security            |version |Transaction | rivative Secu |cisable and|  of Underlying     |of Deri|of Deriva   |Dir|Indirect    |
                      |or Exer |     |      | rities Acqui  |Expiration |  Securities        |vative |tive        |ect|Beneficial  |
                      |cise    |     |      | red(A) or Dis |Date(Month/|                    |Secu   |Securities  |(D)|Ownership   |
                      |Price of|     |      | posed of(D)   |Day/Year)  |                    |rity   |Benefi      |or |            |
                      |Deriva- |     |      |               |Date |Expir|                    |       |ficially    |Ind|            |
                      |tive    |     |      |           | A/|Exer-|ation|   Title and Number |       |Owned at    |ire|            |
                      |Secu-   |     |    | |           | D |cisa-|Date |   of Shares        |       |End of      |ct |            |
                      |rity    |Date |Code|V|  Amount   |   |ble  |     |                    |       |Month       |(I)|            |
___________________________________________________________________________________________________________________________________|
                                                                            
Employee Stock Option |$21.3438|3/9/0|M   | |24,000     |D  |(2)  |3/22/|Common Share|24,000 |       |24,000      |D  |            |
(Right to Buy)        |        |1    |    | |           |   |     |09   |s           |       |       |            |   |            |
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                      |        |     |    | |           |   |     |     |            |       |       |            |   |            |
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Explanation of Responses:
(1)  Reflects end-of-period holdings resulting from acquisitions pursuant to a
qualified plan, which are exempt under Section 16b-3(c).
(2)  Options vest 50% one year after grant date, 75% two years after grant date
and 100% three years after grant date.
SIGNATURE OF REPORTING PERSON
/s/  William G. Bares by Leslie M. Reynolds
DATE
April 6, 2001