Engine Air Conditioner

At least five years ago I bought a 30# jug of "HC-12a/134+" which is advertised as "an all natural organic refrigerant replacement for R-134a and
replaces substitutes for Freon 12 in automotive and stationary refrigeration systems. HC-12a/134+ is compatible with all refrigeration oils.
HC-12a/134+ is non-ozone depleting. ". The stuff has worked well for me. Put it in all of my old cars, son's cars and my GMC.

Got it on Ebay and it cost me less than $150/including delivery. It looks like a life time supply for me.

http://www.ebay.com/itm/HC-12a-134-Refrigerant-175-00-Delivered-/222448574901?hash=item33caf7e1b5:g:OdIAAOSwol5YyYpw&vxp=mtr

It's up to $175 now but still free shipping. Only downside is figuring out how many cans = a squirt of the stuff.
--
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com


Coop Roller Cam 455, Howell TBI + EBL, 3.42 FD, Quadra Bag, Macerator, Manny Tranny etc.
 
> At least five years ago I bought a 30# jug of "HC-12a/134+"

Sorry it is 13# of the stuff and not #30. I did not proof read.

--
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com


Coop Roller Cam 455, Howell TBI + EBL, 3.42 FD, Quadra Bag, Macerator, Manny Tranny etc.
 
Great info guys. Will keep the organic coolant in mind next time around. Have already ordered a case of Frostycool. Appreciate all the good info, you
guys are the greatest!
 
According to Rob Mueller (I have no reason to doubt him) FrostyCool is the same stuff as Duracool. I have not to bought any in a long while and
resisted buying Duracool look-a-likes. Now it seems that Duracool has raised their prices and there seems to be several good alternatives like
FrostyCool. I have a life time supply of R-134 in stock and only use Duracool in my GMC so until I run out of R-134, I'll continue to use it in
R-134 vehiicles until it is gone. In a R-12 vehicle like a GMC, I would definitely use Duracool or one of it's look-a-likes.

You can buy Duracool online from Worthigton AG Parts. I always buy Duracool over the counter in their store. They have many locations around the
country.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
Ive found that in newer R134 cars with a low pressure cutoff switch, duracool doesn't work so well as the pressure are too high.

So I just put 134 in cars that take 134.

________________________________
From: Gmclist on behalf of Ken Burton
Sent: Tuesday, May 9, 2017 11:33:23 AM
To: gmclist
Subject: Re: [GMCnet] Engine Air Conditioner

According to Rob Mueller (I have no reason to doubt him) FrostyCool is the same stuff as Duracool. I have not to bought any in a long while and
resisted buying Duracool look-a-likes. Now it seems that Duracool has raised their prices and there seems to be several good alternatives like
FrostyCool. I have a life time supply of R-134 in stock and only use Duracool in my GMC so until I run out of R-134, I'll continue to use it in
R-134 vehiicles until it is gone. In a R-12 vehicle like a GMC, I would definitely use Duracool or one of it's look-a-likes.

You can buy Duracool online from Worthigton AG Parts. I always buy Duracool over the counter in their store. They have many locations around the
country.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana

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Can we assume that you mean that the pressure of Duracool is too LOW for the switch instead of too HIGH?

Duracool runs lower pressures than 134a.

R134a works fine in systems designed for it but the GMC motorhome was not designed for it so if one puts 134a into a GMC motor home it will run 10 to 20% less efficiently.

Emery Stora
77 Kingsley
Frederick, CO

>
> Ive found that in newer R134 cars with a low pressure cutoff switch, duracool doesn't work so well as the pressure are too high.
>
> So I just put 134 in cars that take 134.
>
> ________________________________
> From: Gmclist on behalf of Ken Burton
> Sent: Tuesday, May 9, 2017 11:33:23 AM
> To: gmclist
> Subject: Re: [GMCnet] Engine Air Conditioner
>
> According to Rob Mueller (I have no reason to doubt him) FrostyCool is the same stuff as Duracool. I have not to bought any in a long while and
> resisted buying Duracool look-a-likes. Now it seems that Duracool has raised their prices and there seems to be several good alternatives like
> FrostyCool. I have a life time supply of R-134 in stock and only use Duracool in my GMC so until I run out of R-134, I'll continue to use it in
> R-134 vehiicles until it is gone. In a R-12 vehicle like a GMC, I would definitely use Duracool or one of it's look-a-likes.
>
> You can buy Duracool online from Worthigton AG Parts. I always buy Duracool over the counter in their store. They have many locations around the
> country.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
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ha ha.

I mean in order to get the compressor to run you have to put in too much duracool and run too high of pressure which makes the duracool not work so well.

you could jump the low pressure switch I suppose

________________________________
From: Gmclist on behalf of Emery Stora
Sent: Tuesday, May 9, 2017 2:31:50 PM
To: gmclist
Subject: Re: [GMCnet] Engine Air Conditioner

Can we assume that you mean that the pressure of Duracool is too LOW for the switch instead of too HIGH?

Duracool runs lower pressures than 134a.

R134a works fine in systems designed for it but the GMC motorhome was not designed for it so if one puts 134a into a GMC motor home it will run 10 to 20% less efficiently.

Emery Stora
77 Kingsley
Frederick, CO

>
> Ive found that in newer R134 cars with a low pressure cutoff switch, duracool doesn't work so well as the pressure are too high.
>
> So I just put 134 in cars that take 134.
>
> ________________________________
> From: Gmclist on behalf of Ken Burton
> Sent: Tuesday, May 9, 2017 11:33:23 AM
> To: gmclist
> Subject: Re: [GMCnet] Engine Air Conditioner
>
> According to Rob Mueller (I have no reason to doubt him) FrostyCool is the same stuff as Duracool. I have not to bought any in a long while and
> resisted buying Duracool look-a-likes. Now it seems that Duracool has raised their prices and there seems to be several good alternatives like
> FrostyCool. I have a life time supply of R-134 in stock and only use Duracool in my GMC so until I run out of R-134, I'll continue to use it in
> R-134 vehiicles until it is gone. In a R-12 vehicle like a GMC, I would definitely use Duracool or one of it's look-a-likes.
>
> You can buy Duracool online from Worthigton AG Parts. I always buy Duracool over the counter in their store. They have many locations around the
> country.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

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