Back in the day we had 93. I manage a Sunoco station. The only way we can get 93 now is to buy 10,000 gallons at a time. The pipeline for our area has 87 and 91 only. In Massachusetts, many stations especially Sunoco have Ultra 94, and full blending pumps offering 87,88,89,90,91,92,93, and 94. We get 87 and 91 and blend it 50/50 to make 89.\\ Funny thing is, when we got new pumps this year, they sent us the button sticker kit which included an 86 sticker. I wasn't aware 86 was available anywhere, or that it could be run in todays engines.