What kind of freon is used in a 1994 Chevy 2500 pickup?
A 1994 Chevy 2500 pickup truck most likely used R-12 (Freon-12) refrigerant in its air conditioning system. However, it's crucial to verify this by checking the vehicle's sticker or documentation. R-12 is no longer produced due to its ozone-depleting properties, so if the system needs servicing, it would require a retrofit to a compatible alternative refrigerant like R-134a.