A 1995 model would have an R-134a system.
R134a
R-134a
R-134
134a is the refrigerent used
If you asking what type of Freon is in a 1993 Aerostar, that would be R12. If you need to get it recharged, you will need to have it converted to R134A system since R12 is no longer available.
freon for 1999 ford explorer =========================== r134a ( Helpfull )
A 1993 Ford Aerostar would have come from the factory with ( 5W-30 )
Freon is R12. Your 1997 Chevy uses R134 Refrigerant.
R134a
Too the best of my knowledge, no. The 1991 used a sealed beam and the 1997 used a halogen type.
134A FREON IS USED.