My Haynes Dodge Dakota Pick-Ups 1987 thru 1996 states: "CAUTION: There are two types of refrigerant, R-12, used on vehicles up to 1992..." Then is goes on to say "Use only R134A refrigerant on models covered by this book". But the book starts with 1987 models.
I'm confused - how do I tell if my 1989 V-6 Dakota uses the old or the new refrigerant? I just purchased an R-134A conversion kit, which has snap-on type adapters, whereas the original are screw-on. Can I tell from that?
Thanks.