1987 R-12 System
Thread Starter
Racer
Joined: Sep 2014
Posts: 421
Likes: 34
From: Troy Michigan
1987 R-12 System
Hello,
I am finally working on my ac system and was wondering what the best way to save the existing system and recharge it would be. Is Envirosafe r12 legal, and effective? I have yet to do diagnostics so if I find a bad compressor and I likely will, should I convert when I replace that instead to R134a? Ive looked at other forums and found Envirosafe R12 may be illegal for a previously R12 system, but I am unsure if it currently is unacceptable to use as these forums were old. Any help would be great!
thanks
I am finally working on my ac system and was wondering what the best way to save the existing system and recharge it would be. Is Envirosafe r12 legal, and effective? I have yet to do diagnostics so if I find a bad compressor and I likely will, should I convert when I replace that instead to R134a? Ive looked at other forums and found Envirosafe R12 may be illegal for a previously R12 system, but I am unsure if it currently is unacceptable to use as these forums were old. Any help would be great!
thanks
Safety Car
Joined: Mar 2003
Posts: 3,583
Likes: 504
From: Indianapolis IN
Finalist 2020 C4 of the Year - Unmodified
C4 of Year Finalist (stock) 2019
Get the envirosafe industrial---I talked to their tech support people before I purchased some for my '87 and they said it's more efficient at cooling than the original formula. They are right! 1 6oz can replaces 18oz of R12. I bought a case on ebay for just under $75.00 delivered.
No need to change ANYTHING over--it's safe to use with either mineral (12) or ester (134a) based oils. You don't even need to pull the system to full vacuum before installing...it installs at atmospheric pressure and will not cause internal corrosion when mixed with moisture like R12 and 134a will...hence not having to evacuate the system.
I got 34º air at the center vent on a 90º+ day. Awesome stuff and 100% legal. It's the only replacement refrigerant I use now.
No need to change ANYTHING over--it's safe to use with either mineral (12) or ester (134a) based oils. You don't even need to pull the system to full vacuum before installing...it installs at atmospheric pressure and will not cause internal corrosion when mixed with moisture like R12 and 134a will...hence not having to evacuate the system.
I got 34º air at the center vent on a 90º+ day. Awesome stuff and 100% legal. It's the only replacement refrigerant I use now.
Last edited by Red86Z51; Jul 14, 2016 at 03:05 PM.
Le Mans Master
Joined: Oct 2003
Posts: 7,625
Likes: 4
From: Director of Bands
St. Jude Donor '08
Get the envirosafe industrial---I talked to their tech support people before I purchased some for my '87 and they said it's more efficient at cooling than the original formula. They are right! 1 6oz can replaces 18oz of R12. I bought a case on ebay for just under $75.00 delivered.
No need to change ANYTHING over--it's safe to use with either mineral (12) or ester (134a) based oils. You don't even need to pull the system to full vacuum before installing...it installs at atmospheric pressure and will not cause internal corrosion when mixed with moisture like R12 and 134a will...hence not having to evacuate the system.
I got 34º air at the center vent on a 90º+ day. Awesome stuff and 100% legal. It's the only replacement refrigerant I use now.
No need to change ANYTHING over--it's safe to use with either mineral (12) or ester (134a) based oils. You don't even need to pull the system to full vacuum before installing...it installs at atmospheric pressure and will not cause internal corrosion when mixed with moisture like R12 and 134a will...hence not having to evacuate the system.
I got 34º air at the center vent on a 90º+ day. Awesome stuff and 100% legal. It's the only replacement refrigerant I use now.
Safety Car
Joined: Mar 2003
Posts: 3,583
Likes: 504
From: Indianapolis IN
Finalist 2020 C4 of the Year - Unmodified
C4 of Year Finalist (stock) 2019
12 cans Enviro-Safe Industrial R134 134 134a Replacement Refrigerant
Use it once and you'll be sold for life. The only reason I use my Robinair vacuum pump anymore is simply to make sure the system I'm working on is leak free. Once verified, open the system to atmospheric pressure and charge. You can do the math and put in the converted R12 to Envirosafe amount, but I prefer to use my gauges and charge by the pressures. If necessary or desired, you can tweek your low pressure switch for your desired cycling pressure.
Remember, get the "INDUSTRIAL" refrigerant. Also, feel free to call their tech support if you have any questions. They are friendly, extremely knowledgeable, and will take all the time you like to discuss their product in as much detail as you need.
Over 40K with this refrigerant in my 87 with no issues....I also run this in my 1994 Jimmy and 1990 LeSabre.
Last edited by Red86Z51; Jul 14, 2016 at 07:53 PM. Reason: Added Info
Thread Starter
Racer
Joined: Sep 2014
Posts: 421
Likes: 34
From: Troy Michigan
I'm certified as well, but there's no need for it with this refrigerant. I got mine from the manufacturer on ebay. Here's a link to what I purchased from the seller:
12 cans Enviro-Safe Industrial R134 134 134a Replacement Refrigerant
Use it once and you'll be sold for life. The only reason I use my Robinair vacuum pump anymore is simply to make sure the system I'm working on is leak free. Once verified, open the system to atmospheric pressure and charge. You can do the math and put in the converted R12 to Envirosafe amount, but I prefer to use my gauges and charge by the pressures. If necessary or desired, you can tweek your low pressure switch for your desired cycling pressure.
Remember, get the "INDUSTRIAL" refrigerant. Also, feel free to call their tech support if you have any questions. They are friendly, extremely knowledgeable, and will take all the time you like to discuss their product in as much detail as you need.
Over 40K with this refrigerant in my 87 with no issues....I also run this in my 1994 Jimmy and 1990 LeSabre.
12 cans Enviro-Safe Industrial R134 134 134a Replacement Refrigerant
Use it once and you'll be sold for life. The only reason I use my Robinair vacuum pump anymore is simply to make sure the system I'm working on is leak free. Once verified, open the system to atmospheric pressure and charge. You can do the math and put in the converted R12 to Envirosafe amount, but I prefer to use my gauges and charge by the pressures. If necessary or desired, you can tweek your low pressure switch for your desired cycling pressure.
Remember, get the "INDUSTRIAL" refrigerant. Also, feel free to call their tech support if you have any questions. They are friendly, extremely knowledgeable, and will take all the time you like to discuss their product in as much detail as you need.
Over 40K with this refrigerant in my 87 with no issues....I also run this in my 1994 Jimmy and 1990 LeSabre.
Hey guys really appreciate the replies, I am assuming all my old R12 Leaked out long before I bought the car, not sure tho. before I Recharge the system do you recommend buying a gasket kit and replacing the gaskets for the a/c system? and how difficult would that be. Or should I just just giving it a try and seeing how long it lasts. Thanks!!
Melting Slicks
Joined: Jul 2016
Posts: 2,611
Likes: 46
From: Pine Bush New York
refrigerant
Actually the can's label clearly states R134! Seems a little fuzzy and mixing R134 and R12 is not something I would do. The safe bet would be to wrestle up some R12. There's plenty of it on line. (No offense meant, just my $.02!)
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