any body tried this? (r12 replacements) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*newin72* · 07-02-2005, 11:26 AM

http://63.135.115.175/products_refr.html

or this:

www.duracool.com

?

any luck with either? or what other options do you prefer?

70c10 · 07-02-2005, 02:38 PM

Never heard of those. I'm well stocked with 134A and R-12 for awhile.

HuggerCST · 07-02-2005, 08:36 PM

Never used thoses, but I've been using "Freeze 12" as a drop in replacement in the state vehicles that I maintain for a couple of years now, and have had no problems at all.

***Josh*** · 07-02-2005, 10:29 PM

Freeze 12 is the best r12 replacement I've found and used, it cools about like 134a, but is more friendly to an R12 system... Never heard of the others.

Gene · 07-06-2005, 03:21 PM

Quote:

Originally Posted by Josh

Freeze 12 is the best r12 replacement I've found and used, it cools about like 134a, but is more friendly to an R12 system... Never heard of the others.

Hey Josh, I had my system recharged with freeze12 and I was wondering, how cold should it be getting? The coldest reading I have gotten is 50 degrees. My brother in law filled it and he put in the oil charge 8oz. and two and a half 12 ounce cans. But there is still bubbles showing in the sight glass on the dryer. I always thought if there were bubbles that it was low on freon?

4x4Poet · 07-04-2005, 01:20 AM

ttt

Terry Peerson · 07-04-2005, 07:01 AM

I use this stuff called "Autofrost" in my '72. It works very well in an R12 system. Cools the air at the vents down to 40° F. I bought a 25# Bottle about 3-years ago. The truck leaks a bit and I have to add a pound or two every year. I'll probably buy another bottle next spring.

Good Luck!

T

chickenwing · 07-06-2005, 01:33 PM

The info on the duracool sire alludes to R134 eventually ending up on the chopping block with R-12. Instead of ozone depletion the hazard is supposed to be global warming.

I don't consider myself to be the tree-hugging type but I do try to keep my hazmat down to a minimum. This stuff is supposed to be 30 odd percent more effiecient than R134 and about the same performance as R-12. Price is a lil more expensive than R-134. All that said, I'm interested.

I have nearly all of my a/c bits and pieces together. I just need some hoses custom made and a few lines bent up. Hopefully, I'll have it up and going before winter hits. It's a money thing ya know.

Still on the fence for the refrigerant. If I use something other than 12 or 134 I'll post my results. Don;t hold your breath though, winter is a few months away.

If anyone does have experiance with the hydrocarbon refrigerants, I too would like to know about it.

Edit: Newin72, thanks for the heads-up. I would have never found this info otherwise.

*newin72* · 07-06-2005, 04:33 PM

Gene, did you pull a GOOD vacuum on your system first?

Gene · 07-06-2005, 05:28 PM

Yes, he pulled a vaccum and it held at 22 psi for over an hour.

07-02-2005, 11:26 AM	#1
newin72 Account Suspended Join Date: May 2005 Location: East Texas Posts: 545	any body tried this? (r12 replacements) http://63.135.115.175/products_refr.html or this: www.duracool.com ? any luck with either? or what other options do you prefer?

07-02-2005, 02:38 PM	#2
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	Never heard of those. I'm well stocked with 134A and R-12 for awhile. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

07-02-2005, 08:36 PM	#3
HuggerCST Registered User Join Date: Jul 2001 Location: North Louisiana Posts: 4,501	Never used thoses, but I've been using "Freeze 12" as a drop in replacement in the state vehicles that I maintain for a couple of years now, and have had no problems at all. __________________ Wynne 70 CST short fleet Hugger orange & white, 350/350, ps, pb, air, tilt, tach/vac/speedwarning, original buckets, AM/FM, oak bed floor, shoulder belts, 3.5"/5.5" drop, 20" American Racing VN425s. Build thread 53 Chevy shortbed 69 Camaro Click here to subscribe Chevy GMC International Truck Club Louisiana Charter Member http://www.louisianaclassictruckclub.com

07-02-2005, 10:29 PM	#4
*Josh* He's got mean nasty FANGS! Join Date: Dec 1999 Location: Rockwell, NC Posts: 6,512	Freeze 12 is the best r12 replacement I've found and used, it cools about like 134a, but is more friendly to an R12 system... Never heard of the others. __________________ 2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com

07-04-2005, 01:20 AM	#6
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	ttt __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

07-04-2005, 07:01 AM	#7
Terry Peerson Registered User Join Date: Aug 2003 Location: Bonner Springs, KS Posts: 311	I use this stuff called "Autofrost" in my '72. It works very well in an R12 system. Cools the air at the vents down to 40° F. I bought a 25# Bottle about 3-years ago. The truck leaks a bit and I have to add a pound or two every year. I'll probably buy another bottle next spring. Good Luck! T

07-06-2005, 01:33 PM	#8
chickenwing Lovin' Life in Miss.! Join Date: Mar 2004 Location: Puckett, Mississippi Posts: 1,937	The info on the duracool sire alludes to R134 eventually ending up on the chopping block with R-12. Instead of ozone depletion the hazard is supposed to be global warming. I don't consider myself to be the tree-hugging type but I do try to keep my hazmat down to a minimum. This stuff is supposed to be 30 odd percent more effiecient than R134 and about the same performance as R-12. Price is a lil more expensive than R-134. All that said, I'm interested. I have nearly all of my a/c bits and pieces together. I just need some hoses custom made and a few lines bent up. Hopefully, I'll have it up and going before winter hits. It's a money thing ya know. Still on the fence for the refrigerant. If I use something other than 12 or 134 I'll post my results. Don;t hold your breath though, winter is a few months away. If anyone does have experiance with the hydrocarbon refrigerants, I too would like to know about it. Edit: Newin72, thanks for the heads-up. I would have never found this info otherwise. __________________ The truck... you hear that? No really, you did hear that?!!! Last edited by chickenwing; 07-06-2005 at 01:36 PM.

07-06-2005, 04:33 PM	#9
newin72 Account Suspended Join Date: May 2005 Location: East Texas Posts: 545	Gene, did you pull a GOOD vacuum on your system first?

07-06-2005, 05:28 PM	#10
Gene Registered User Join Date: Aug 2002 Location: Muskogee, Oklahoma Posts: 2,914	Yes, he pulled a vaccum and it held at 22 psi for over an hour. __________________ 1971 SWB 4X4 Build BOARD MEMBER #5448 BOOMER SOONER!!!!



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