Sometimes NOT using the AC is what causes the very slow leak, due to irregular pressure and lubrication on the compressor seals. Having the shaft spin once in a while helps avoid this. If you charge it up and start using it regularly, you may find the leak disappears on its own.

This commonly happens with engine, tranny, and power steering seals as well.

Of course, the leak could be somewhere else, too. Just something you might want to consider.

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