Refrigerant plays an important role in an AC. The best refrigerant is although R-12 only, but there is one more refrigerant that can be used as an alternative of it called R-134a. This is the only refrigerant which is approved to be used as an altenative. Do not even try to put some other refrigerant other than this, as it will be considered illegal.
Cool mark. you covered almost everything. I just want to add one more point.
Wehn you are buying an auto part or giving your car for a huge repair, do confirm the price of the repair and auto parts at other stores as well. You know just to be sure about the price that you are buying the part for.
I remember when I took my Fiancé for a ride in my Lexus. We had fun ride, talking and sharing. Now I am married, and sometimes when we think of selling the car, she doesn’t want that. We actually started knowing each other by going on rides in this car.