A 2000 Dodge Ram's refrigerant type depends on the specific A/C system installed. At that time,
R-134a was the most common refrigerant used in automotive air conditioning systems. However, some older vehicles might still have used R-12, though this is less likely for a 2000 model year.
To be absolutely certain, check the sticker on the underside of your vehicle's hood. This sticker usually details the recommended refrigerant. If it's missing or unreadable, consult your owner's manual.
