Originally Posted By: Clevy
Costco locally uses shell branded fuel. I saw a shell tanker filling up their underground tanks.
Maybe Costco is no longer using shell branded fuel
TiredTrucker has explained what happened when he used to deliver fuel. The fuel market is primarily a commodity market where fuel is a fungible commodity. A large fuel marketer probably has its own proprietary additive (possibly made for them by a large chemical company like Lubrizol or Afton) and this additive is metered with the delivery when a trucker comes is and swipes his access card. Everything is already set up before the trucker arrives, what driver is going to show up, the quantity/type of fuel, the available delivery equipment, and the end customer. If it's a Shell station, they'll deliver the additive set up at the terminal for Shell. There might be one or several generic additives.
Strangely enough, the vast majority of deliveries I see around here are with independent fuel trucking companies like Beneto. That includes Shell, Chevron, Valero, and independents and convenience stores. I wouldn't be surprised if Shell doesn't simply hire out their delivery services when they have availability. It might not even carry the Shell proprietary additive. If it's a Clean Power station then I'm thinking it probably isn't.
Costco buys on the spot and futures markets. Then they get deliveries at local terminals with contracted delivery services. If it's going to a place without the Clean Power setup, then they'll have to have the additive added at the terminal. If it's going to a Clean Power station, then they likely order fuel without detergent additive. Around where I live, there's a lot of fuel truck activity near the Chevron Richmond refinery. I have the feeling that it's where most of the fuel sold in the area is refined. It's easy enough to share on paper with Shell, Valero, ConocoPhillips, etc. It's a big accounting exercise to trade fuel for their own branded customers, which saves the expense of having to pipe it when not absolutely needed.
While there are a lot of fuel terminals near refineries, I understand that most fuel is delivered to the terminals via pipelines. Here's a company that operates several terminals around California, including areas nowhere near any refineries.
http://www.generalpetroleum.com/facilities/