<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
BALANCE SHEET AND CONSOLIDATED STATEMENTS OF INCOME AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<CIK> 0000060751
<NAME> THE LUBRIZOL CORPORATION
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                                                  
<PERIOD-TYPE>                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               JUN-30-1997             SEP-30-1997
<EXCHANGE-RATE>                                      1                       1
<CASH>                                          74,764                  92,196
<SECURITIES>                                         0                       0
<RECEIVABLES>                                  259,034                 254,186
<ALLOWANCES>                                     1,247                   1,237
<INVENTORY>                                    256,306                 253,698
<CURRENT-ASSETS>                               647,179                 659,442
<PP&E>                                       1,526,584               1,543,127
<DEPRECIATION>                                 828,662                 841,246
<TOTAL-ASSETS>                               1,454,157               1,473,568
<CURRENT-LIABILITIES>                          274,883                 294,838
<BONDS>                                        159,694                 157,291
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        80,399                  83,055
<OTHER-SE>                                     743,350                 740,635
<TOTAL-LIABILITY-AND-EQUITY>                 1,454,157               1,473,568
<SALES>                                        820,305               1,247,129
<TOTAL-REVENUES>                               822,530               1,250,266
<CGS>                                          541,120                 831,404
<TOTAL-COSTS>                                  541,120                 831,404
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                    80                     132
<INTEREST-EXPENSE>                               5,033                   7,873
<INCOME-PRETAX>                                127,054                 185,691
<INCOME-TAX>                                    41,293                  61,278
<INCOME-CONTINUING>                                  0                       0
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    85,761                 124,413
<EPS-PRIMARY>                                     1.47                    2.14
<EPS-DILUTED>                                     1.46                    2.13