A quick note on Hyperlube, I saw a lot of people posting that they were using 10% Hyperlube and 90% distilled water. If you are going below freezing this mixture will NOT prevent ice or slushing! I tried 10%, then 20%, and my evaporator coil was still freezing over. You have to run about a 50/50 mixture with this stuff, but the upside is it's very UV reactive (gotta love the aesthetics). Of course if you properly insulated the lines this is kind of a moot point...
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