Quote:
Originally Posted by jtbo
I guess that needs again new seals and stuff, like going from R12 to R-134a was, where you needed all kind of new seals.
I did read sometime that whole freon being dangerous was proven to be false by some recent study, but hard to know for sure, these days there are so many claims that you don't know what to believe anymore.
Anyway air conditioning should be used regularly to keep it in working order I have been told, was that to do lubrication or what, I can't remember but it might be worth to keep stuff in and run A/C every now and then to be just sure.
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First, if your AC system isn't leaking, then you aren't hurting the environment by running R12. Converting from R12 to R134A just requires adapters installed on the lines to hook up the charge machine, and a different type of oil will go into the system. Keep in mind, the AC probably won't be as cold after the conversion. R134A is a little weaker than R12.
Yes you should turn on the AC in your car from time to time even if you don't feel you need it. The system contains several ounces of oil that circulates through the whole system while it is running. This oil keeps the moving parts inside the compressor lubed up and moving freely. Anywhere a line connects to something else in the system there are rubber o-rings. These o-rings are kept soft and pliable by the oil as well.
So, AC that is rarely used is more likely to develop leaks than one that is used regularly.