R-12 and you need to be licensed to buy it.
Your vehicle uses 34oz of R134a refrigerant. There is a great web site with a lot of helpful information about your vehicle ac system. Check the link below.
What type of oil does a 1998 Lincoln Continental use
A 1997 Lincoln Continental will use Mercon transmission fluid- AX4N Transmission
r 134A.
Lincoln Continentals are the same from 1998 to 2002, 98 is when they changed body style and 2002 is when they discontinued the continental.
you can use any of the three gasoline's available at the pump, it doesnt matter. ========================================================= I was looking at the 2002 Lincoln Continental Owner Guide and it shows to use " premium " unleaded , 91 octane
Mercron 5
Six quarts of 5W-30
According to the 1998 Lincoln Continental Owner Guide : ( DOT 3 brake fluid , meeting Ford specification ESA-M6C25-A )
Use Ford Type F fluid.
SAE 5w20 any premium brand.
Use a slim Jim