e15 is .15 cheaper than e10 here and .49 cheaper than super unleaded. Drop the UL88 title and go  consistently with with e85,e15 and e10. I have personally had people on multiple occasions think 88 means 88% ethanol vs 85% with e85 therefore thinking it is worse than e85 and can not use it. Keep it all on the same page! Some people "get it" but not all. Eliminate their confusion I feel.