I found an old tube of Arctic Ceramique out in the garage. It must have been sitting there for years because it's been so long since I've done a build with Ceramique. What I want to know is, is it safe to use on a new build considering it's been sitting in the heat of the garage for years? I'm about to put together a new box and I'm finding myself in need of thermal paste. Should I spring for the extra $5 to buy a new tube or can I be a cheapskate and use the old tube? Thanks! 