***This is not a suggestion - Nor a debate starter***
***Just an experience I had with an "A/C expert" who claims to have worked with automotive A/C for over 30 Years, he is retired)****
I just want to know what type of "substitute" you were planning to use in your system.
I met this gentleman (by chance) here in NC who just "dropped" the Enviro-Safe stuff (with DYE) in his R-12 system.
***It is illegal to do that***
He claimed he had it for a few days (until it leaked out completely).
He claimed it was blowing 35 degrees out the vents on 95 degrees and 75% humidity day.
To make a long story short, the dye showed where the leak was, he fixed the leak, pulled a vacuum and just "dropped" the R-12 in the system after fixing the leak.
He rationalized that Enviro-Safe with dye was a very cheap way to get his A/C running for a few days while the leak was going on (and showing up).
He also claimed that it would not hurt the A/C system, the environment, or his pocket.
Just a funny story.
I did a search and found that HC refrigerants are NOT illegal in NC, but it is illegal to "drop it" in an R-12 system. It is legal to use it on R-134 systems.
I have read MANY articles, scientific explanations, studies, opinions, Etc....
On what a LOT of people have to say about HC refrigerants (good and bad).
My opinion on the subject?
Whatever you decide to do, it is your business.
Please inform yourself before you make decisions (but make sure you read what both sides say, not just one side of the fence)

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1999 Porsche 996 Carrera Convertible
1994 420E - SOLD
1986 300E - SOLD, what a car
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