Re: Anyone have problem with Costco gas?
Having spent many years in "service stations", yes we used to perform services, I talked to many tanker drivers. They told me how it works at the tank farms. All tankers pull up to the refill ports and get their fuel from the same tanks. The difference in the manufacturers i.e. Shell, Chevron or Cheapo is the key they use to activate the additives. There is a large board with many key slots all labeled according to their drop location. The driver just uses the correct key to fill his truck and bill the farm owner. All in one move.
Usually when there are problems with fuel at one location it is the location's lack of maintenance on their in ground tanks. We used to stick the tanks every day and keep track of any water build up.
If you live in a cold weather area it helps to run a bottle of gas de-icer through the tank once in a while to clear out any water you might have picked up in someone's in ground tank. That is the usual culprit.
Hope this helps.
xfirepops