1 EXHIBIT 12 THE LUBRIZOL CORPORATION AND SUBSIDIARIES Computation of Ratio of Earnings to Fixed Charges (all amounts except ratios are shown in thousands) 1994 1993 1992 1991 1990 -------- -------- -------- -------- -------- Pretax income $251,459 $119,651 $177,144 $178,140 $271,212 Deduct earnings of less than 50% owned affiliates (net of distributed earnings) included in pretax income (871) (2,355) 9 (3,796) (3,401) Add losses of less than 50% owned affiliates included in pretax income 490 21,063 2,769 53 -0- Add fixed charges net of capitalized interest 3,149 4,154 3,615 7,738 6,049 Add previously capitalized interest amortized during period 452 272 162 96 6 ------- ------- ------- ------- ------- "Earnings" $254,679 $142,785 $183,699 $182,231 $273,866 ======= ======= ======= ======= ======= Gross interest expense including capitalized interest ("Fixed Charges") $ 6,922 $ 6,292 $ 4,981 $ 9,049 $ 7,070 Ratio of earnings to fixed charges 36.8 22.7 36.9 20.1 38.7 Special adjustments: ------------------- "Earnings" $254,679 $142,785 $273,866 Plus special charges 86,303 Less Genentech gain (41,235) (42,443) (101,921) Plus Agribusiness write-off 9,734 ------- ------- ------- Adjusted "Earnings" $213,444 $186,645 $181,679 ======= ======= ======= Ratio of adjusted earnings to fixed charges 30.8 29.7 25.7