Re: Parallel Flow Condenser
You can make your own drop-in R-12 replacement using a propane/isobutane mix, which is also available commercially if you don't want to make it yourself.
It is just as safe as R-134A, the flashpoint is higher than the 134a/oil mix that would be running thru your system.
You could use the propane straight, the mix is so it will mix with the oil better.
Interestingly, the van I drive at work is a 2000's Chevy van using R134a and it's performance driving around town is like my '78, yet it was built for 134a.
Last edited by oldgold70c10; 08-06-2018 at 05:43 PM.
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