This is a great question and I am curious to see what is posted here in response. I have noticed some differences in fuel stored on the concrete floor of my garage vs fuel stored on my shelves. I have no idea why but the stuff on the concrete floor is terrible and the shelf is just fine. I usually shake up my fuel if its been sitting for a while to make sure all the oils and everything are mixed well.
If I were you Id take a tank and see what the performance is like. Can you tune it in, is it stabile, does it get too hot, does it idle well. If it checks out to you Id run it. You can either try it and see or toss it, personally I like to turn my nitro in exhaust when I am getting rid of it