Little different.
Little different.View attachment 41658
Little different.View attachment 41658
With this kind of selection I wonder how often some of those fuels get turned over...??? I would imagine most of us use "regular" (or the cheapest) a small portion use "premium" and an even smaller portion use "mid-grade." I was a fuel jockey (I mean petroleum transfer technician )back in high school at a full serve station and this was all we had. My breakdown above is how I remember it... I can see ethanol muddying the water but to be honest most OPE owners (non BITOG) don't care about OPE gas type and ethanol ratings. I know my neighbor who struggled didn't know until I replaced the carb on his snow blower and let him know what the cause was. As a side note I don't see any E85 on that pump, so 1 more button is needed...
just my $0.02
Someone on here once posted details of the ASTM tests for octane rating and I know it had a tolerance of at least one point. So each of those may actually be the same rating as the ones on each side of it.