Regarding high volume stations, someone once told me never to buy fuel soon after the station's tanks had been serviced, as the high pressure, high volume pumping stirs up all the junk in the bottom of the tank.
I have considered going ethanol free, but, as someone mentioned, that tank is probably not going to be high volume - especially the 92 octane premium.
So, I've been buying my gas at the Costco on the way to the airport. One day, while waiting in the line, the driver of a big tandem fuel truck was stowing his hoses and finishing up his delivery. I thought about the servicing issue, and struck up a conversation. I asked him how much fuel he had just delivered. He said 11,000 gallons. I was impressed.
Then I pulled up to the island and filled my gas cans. The attendant ambled by, and I struck up another conversation. "I'll bet that load will last you for a while!" I said. "Not really," he said. "How long will that load last you", I asked. "Would you believe that truck delivers here three times every day?" he answered.
Now, I was REALLY impressed. 33,000 gallons per day. Guess that's a "High Volume Station".
Bob Bogash
N737G