Negative Positive
Title: So far so good
Review: I bought this kit to do a 134a retrofit on a 1990 F150. The system still had R12 in it so all I had to do was have the R12 evacuated and then install this kit and charge. The local garage evacuated the system for free, likely because they got to keep the R12. Using this kit was basically as simple as screwing on two fittings and charging the system. Because the capacity of the F150's system is so large I did have to add an additional can of 134a, but for most cars the 33oz included in the kit should be plenty.One of the things about this kit is that you are supposed to leave the original oil in the system and there is supposed to be chemicals in the included cans that make it compatible with 134a. In addition there is additional oil as well as stop leak premixed in the cans. This certainly simplifies the process. I will not know though how reliable this "mix" ends up being for some time, but I can say that the vents are blowing cold which is a major improvement.
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