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EXHIBIT 12

PENNZOIL-QUAKER STATE COMPANY
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

|                                                                             |  |                              |         |      |  |   |         |  
|---------------------------------------------------------------------------- |  | ---------------------------- | ------- | ---- |  | - | ------- | -
|                                                                             |  | For the nine months ended   
|                                                                             |  | September 30,               
|                                                                             |  |                             
|                                                                             |  | 2002                         |         | 2001
|                                                                             |  |                              |         |     
|                                                                             |  | (Dollar amounts expressed in
|                                                                             |  | thousands)                  
|Income (loss) from continuing operations
before income from equity investees |  | $                            | 53,447  |      |  | $ | (11,841 | )
|Distribution of income from equity investees                                 |  |                              | 7,604   |      |  |   | 14,900  |  
|Amortization of capitalized interest                                         |  |                              | 112     |      |  |   | 638     |  
|Income tax provision                                                         |  |                              | 45,874  |      |  |   | 21,326  |  
|Interest charges                                                             |  |                              | 90,724  |      |  |   | 91,411  |  
|                                                                             |  |                              |         |      |  |   |         |  
|Income before income tax provision and interest charges                      |  | $                            | 197,761 |      |  | $ | 116,434 |  
|                                                                             |  |                              |         |      |  |   |         |  
|Fixed charges                                                                |  | $                            | 90,724  |      |  | $ | 91,411  |  
|                                                                             |  |                              |         |      |  |   |         |  
|Ratio of earnings to fixed charges                                           |  |                              | 2.18    |      |  |   | 1.27    |  
|                                                                             |  |                              |         |      |  |   |         |  

DETAIL OF INTEREST AND FIXED CHARGES

|                                                                                                                            |                        |   |                           |        |      |   |        |        | 
|--------------------------------------------------------------------------------------------------------------------------- | ---------------------- | - | ------------------------- | ------ | ---- | - | ------ | ------ | 
|                                                                                                                            |                        |   | For the nine months ended
|                                                                                                                            |                        |   | September 30,            
|                                                                                                                            |                        |   |                          
|                                                                                                                            |                        |   | 2002                      |        | 2001
|                                                                                                                            |                        |   |                           |        |     
|                                                                                                                            |                        |   | (Expressed in thousands) 
|Interest charges per Consolidated Statement of Operations
which includes amortization of debt discount, expense and premium |                        | $ | 68,451                    |        |      | $ | 71,536 |       
|Add: portion of rental expense representative of interest factor (1)                                                        |                        |   | 22,273                    |        |      |   | 19,875 |       
|                                                                                                                            |                        |   |                           |        |      |   |        |       
|                                                                                                                            | Total fixed charges    |   | $                         | 90,724 |      |   | $      | 91,411 | 
|Less: interest capitalized per Consolidated Statement of Operations                                                         |                        |   |                          |        |      |   |       |       
|                                                                                                                            |                        |   |                           |        |      |   |        |       
|                                                                                                                            | Total interest charges |   | $                         | 90,724 |      |   | $      | 91,411 | 
|                                                                                                                            |                        |   |                           |        |      |   |        |       

(1) Interest factor based on managements estimates and approximates one-third of rental expense.