Quote:
Originally Posted by leddzepp
Agree 100%. I did R-134 in a previous truck with factory AC. Recalibrated POA valve, flushed system, swung a dead chicken over my head, etc. Had to be doing 70 on the freeway for it to get cold on just a "warm" day.
Went with R-12 on my next truck with factory AC. It blows snowballs out the vents in 110 degree temps, sitting at a stand still in So Cal traffic. Yes it costs more than R 134 but so what? You charge it once either way and you are done. The bottom line is you want cold air and with R 12 you get it no matter what. What good is AC if it don't work?? No hoops to jump through and "hope" it works in the end with R 12.
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I agree, I used R-12 on the last factory system I rebuilt on a 71 GMC, and it blows 40 degree air out the vents on a 100 degree day, idling in traffic. I have never been a big fan of R-134, even in newer vehicles designed for it. R-12 is what these older systems were engineered for, and as long as I can still buy it, that's what I am going to use.