Sorry but I don't trust anything not approved by Honda. That's just me though. I have a cert. to work on R12 and buy it cheap on ebay so I don't have to buy the iffy refrig. Here's the thing, 6 years ago I didn't know anything about stuff like this. If you read and invest some time you can get really good at this stuff, get a lic. (which is easy) and do it yourself. there is nothing magicial about this subject. It's all 7th grade science.

BTW, I have no clue what's the make up of freeze12, What I heard was it was like 80% r134a. The source that told me this is pretty knowledgeable but I have no clue. If it were really good though I think car company's would buy into it and that hasn't happened, so I'm sticking with what goes in at the factory.