I have said it many times before if you search that I LIKE and USE Duracool 12-a in both of my 123 cars. Also used it in a 63 t-bird last year. I have my card to buy the real deal but can't justify the cost unless I am doing work for someone else and they want to pay for real r-12. It may not be legal to use in my state but many of the people in my state are to stupid to figure out how to vote so I figure the people who make the laws are just as stupid so the law banning hydocarbons is equally as stupid