I assumed the "Top Tier" ingredients could be lumped together with other stuff, like ethanol (the street view scene linked in my original question shows a tank labeled thus), octane-boosting additives, detergents and so on. All based on the totally generic "regular gasoline" - two of the giant tanks are labeled that but there are a few tanks further back whose label is not visible.
The pipeline map shows the pipeline terminating pretty much exactly where you can see it coming out of the ground. There are other fuel depots nearby. One assumes secondary pipes to deliver material to them, but I don't know this business at all, so the more people who know do pipe in, the better.
Ah, one of the other fuel depots has some tank labels visible as well, and it does have separate tanks for "regular" and "premium" gas.
The pipeline map shows the pipeline terminating pretty much exactly where you can see it coming out of the ground. There are other fuel depots nearby. One assumes secondary pipes to deliver material to them, but I don't know this business at all, so the more people who know do pipe in, the better.
Ah, one of the other fuel depots has some tank labels visible as well, and it does have separate tanks for "regular" and "premium" gas.
https://goo.gl/maps/HDngMfSoggs5KQe58