Well Houston, I still have my A/C problem but thanks for the extensive response. Good info there.

Just to recap, I only need this to work for a couple months. Thru August at the most. If I have to put a can of FREEZE 12 in once a month so be it.

I had the 3-10 oz cans of Freeze 12 put in today. A/C started cold but got warm after awhile. Mechanic thinks there is a blockage somewhere in the system. Also, they saw dampness on the compressor which they think is oil leaking from the A.C. At least the compressor is coming on. Just have to fix or slow the leak.

Is the low side the valve that points up or the valve that points towards the radiator?