yep....87, or 89, or 93, or 94. But now you push a button to select grade. Mostly around here we have Sunoco, Exxon, Citgo, Sheetz, Kwik Fill, BP. Anyway, I hope what SMP said isn't happening to me. The Si requires 91 due to the high compression, and I don't want to turn my rings to slag! Do you...