RW> Should be done occasionally. My Silverado is ten years old and the brake   
   RW> fluid is getting a bit dark...I'll change out what's in the master   
   RW> cylinder and replace that fluid soon.   
      
   I just wait for the lines to rust out, thus leaking all the fluid out.  :)   
   That seems to be the norm for me.   
      
   - Mark   
      
   --- WWIVToss v.1.50    
    * Origin:  http://www.weather-station.org * Bel Air, MD -USA (1:261/1304.0)