About the duracool.
Duracool and other similar products are propane, methane, and butane mixtures. From a properties standpoint they work pretty good in refrigerant systems.
They are not commonly used for the obvious reason. Fire.
I investigated this when bringing all my AC systems up to good working order. In the long run, I decided to get my AC license so I could buy the proper gases and use them correctly. I mention this, because many of you are DIY. I spent about a 100 bucks for a good set of gauges, the online licensing was less than 100 bucks, a 25 lb jug of R134A is about 75 bucks at Sam's Club, and I got a 25 lb jug of R-22 for about $250. Seems like a big initial outlay, until you get someone to quote you on working on one of your AC systems. I highly recommend the online licensing, even if you don't pay to get the license, studying for the quiz teaches you the basics of AC and the different gases used.
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Richard Rhonda Ty and Alex Entrekin
1995 Newell # 390 DD Series 60, Allison World Trans
Subaru Outback toad
CoMotion Tandem
Often wrong, but seldom in doubt
Rhonda's chronicle https://wersquared.wordpress.com/
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