Originally Posted By: BearZDefect
In town here the premium gasoline at most stations (like Speedway) is 92 octane, but a few brands (ex, Meijer, Shell) are 93. Does that suggest a different supplier?
I know where our gasoline depot is in town, but is there more than one?
Yes, likely. Around here in a rural area, most gasoline comes from the Sunoco terminal (from Philly) and then the additives are added to make the brand. Also United Refining in Bradford, PA (Kwik-Fill) supplies their own gasoline. Most stations around here are Sunoco, Mobil, Citgo, Kwik-Fill, and generic. there are vary rarely Exxons, Shells, and Gulfs.
Two local convenience store chains dominate the landscape, but sell various brands, along with no brand. These stations that sell Mobil gas get it from the Sunoco terminal with Mobil additives. The few Mobil stations that are not affiliated with one of these convenience store chains actually get their fuel from Mobil's terminal in Syracuse - 1.5 hrs away.
It doesn't matter much here, as the base gasoline is pretty much regulated to 10% ethanol with certain characteristics, so most fuel is generic. It is the additives that make it any different.