Gold Lifetime Member
Join Date: Apr 1999
Location: Vancouver Island, Canada
Re: Those with original AC systems...
Running stock A/C with Freeze 12 and no complaints at all. Flushed the system replaced the drier and poa and blows icy cold. If you can still get R12 in your state than i would consider sticking with it. If not 134a is fine and works, changing to vintage air is not going to make any difference and you might as well make the move to freeze 12 or 134a.
Most of the "alternative" refrigerants are really nothing more than a slightly different blend with a fancy can. If you are unlucky, you actually get propane, butane, or some other flammable gas.( Not that it is going to explode as there have been no documented cases)
ALTERNATIVE REFRIGERANT BLENDS
•Free Zone (RB-276).
• Supplied by Refrigerant Gases, this blend contains 79% R-134a, 19% HCFC-142b and 2% lubricant.
• Supplied by Technical Chemical, this blend contains 80% R-134a and 20% HCFC-142b.
• Made by Intermagnetics General and marketed by Pennzoil, this blend contains 59% R-134a, 39% HCFC-124 and 2% butane.
•GHG-X4 (Autofrost & McCool Chill-It).
• This blend is supplied by Peoples Welding Supply and contains 51% R-22, 28.5% HCFC-124, 16.5% HCFC-142b and 4% isobutane (R-600a).
•. Also supplied by Peoples Welding Supply, this blend contains 65% R-22, 31% HCFC-142b and 4% isobutane (R-600a).
•Hot Shot\Kar Kool.
• Supplied by ICOR, this blend contains 50% R-22, 39% HCFC-124, 9.5% HCFC-142b and 1.5% isobutane (R-600a).
67 RSSS Van Nuys, 4th week Sept,1966
ps,tilt,headrest,spd warn,pw,am/fm,delux int,
remote mirror,rear defrost,tint glass.etc...
TKO 600 Extreme,12bolt 3:73 gears.
Last edited by 67RSSS; Feb 27th, 12 at 09:43 PM.