Someone is joking with you , there isn't any such thing
as " blinker fluid "
For a 1997 Mercury Sable : ( DOT 3 brake fluid meeting Ford specification ESA-M6C25-A )
The Mercury Sable transmission has a fluid capacity of 12 quarts. You can use any SAE certified automatic transmission fluid.
According to the 2004 Mercury Sable Owner Guide : ( Motorcraft MERCON automatic transmission fluid is used as the power steering fluid )
Motorcraft MERCON automatic transmission fluid is used as the power steering fluid ( according to the 1998 Mercury Sable Owner Guide )
According to the 2000 Mercury Sable Owner Guide : Motorcraft MERCON automatic transmission fluid is used as the power steering fluid
According to the 1997 Mercury Sable Owner Guide , Motorcraft MERCON automatic transmission fluid is used for the power steering fluid
According to the 1998 Mercury Sable Owner Guide : ( Motorcraft MERCON automatic transmission fluid is used as the power steering fluid )
According to the 2002 Mercury Sable Owner Guide : ( Motorcraft MERCON automatic transmission fluid is used as the power steering fluid )
DOT 3 brake fluid
According to the 1998 Mercury Sable Owner Guide : ( Motorcraft MERCON-V automatic transmission fluid )
Mercon V
According to the 2000 Mercury Sable Owner Guide : ( Motorcraft MERCON - V , automatic transmission fluid in both types of automatic transaxle / transmission )