According to the 1999 Mercury Sable Owner Guide : ( 5W-30 )
R134a
SAE 5w20
According to the 1999 Mercury Sable Owner Guide : ( Motorcraft MERCON-V automatic transmission fluid ) ( to confirm the type used , it should be engraved in the automatic transmission fluid dipstick )
Use exactly what the manufacture recommends. 5w30 should be the recommendation.
According to the 1999 Mercury Sable Owner Guide : For the 3.0 litre " Vulcan " V6 engine and the 3.0 litre " Duratec " V6 engine : ( " regular " unleaded gasoline , 87 octane )
According to the 2004 Mercury Sable Owner Guide : ( Motorcraft MERCON automatic transmission fluid is used as the power steering fluid )
" regular " unleaded , 87 octane
R134a
R134a freon............
Yes
Motorcraft MERCON automatic transmission fluid is used as the power steering fluid ( according to the 1998 Mercury Sable Owner Guide )