I've noticed this grade of gas at Sheetz here in PA. As some may know, PA is heavily taxed for gas and prices are on the rise again. Regular 87 is $3.30 or so but Sheetz has this Unl88 for $1.99 ($1.94 if you use sheetz card). Apparently it's just normal gas but 15% ethanol vs the normal 10%. For the price I may just give it a go. What say you guys?