Redmax oil is only slightly more expensive and it's actually Jaso FD certified.$10 per quart on two stroke oil is good in my opinion for my area. it averages at $40 per gallon and performs the same as power blend oil.
You have any Citgo stations where you live. Citgo air cooled is certified and good stuff as well.
I actually tried to run some non certified low ash oil made by the company I work for. I could tell it was garbage pretty quick. I just don't trust cheap oils that are not certified.