1 EXHIBIT 12 THE LUBRIZOL CORPORATION AND SUBSIDIARIES Computation of Ratio of Earnings to Fixed Charges (all amounts except ratios are shown in thousands) 1999 1998 1997 1996 1995 ---- ---- ---- ---- ---- Pretax income $ 195,350 $ 118,814 $ 231,147 $ 250,608 $ 225,574 Deduct earnings of less than 50% owned affiliates (net of distributed earnings) included in pretax income (3,195) (1,470) (3,018) (48) (1,384) Add losses of less than 50% owned affiliates included in pretax income 18 888 66 56 1,808 Add fixed charges net of capitalized interest 29,696 18,976 10,803 10,955 10,376 Add previously capitalized interest amortized during period 1,446 1,191 1,118 968 1,096 --------- --------- --------- --------- --------- "Earnings" $ 223,315 $ 138,399 $ 240,116 $ 262,539 $ 237,470 ========= ========= ========= ========= ========= Gross interest expense including capitalized interest ("Fixed Charges") 28,953 $ 20,743 $ 13,194 $ 14,010 $ 14,693 Ratio of earnings to fixed charges 13.0 6.67 18.2 18.7 16.2 Special Adjustments: - -------------------- "Earnings" $ 223,315 $ 138,399 $ 240,116 $ 262,539 $ 237,470 Plus asset impairment and special charges 19,569 36,892 9,489 Less gains on investments and litigation settlements (17,626) (16,201) (53,280) (38,459) --------- --------- --------- --------- --------- Adjusted "Earnings" $ 225,258 $ 159,090 $ 240,116 $ 209,259 $ 208,500 ========= ========= ========= ========= ========= Ratio of adjusted earnings to fixed charges 12.9 7.67 18.2 14.9 14.2