In case you're wondering about the maximum amount of gas that you can put it an automobile in one fillup, it appears to be $75.
I discoverd this handy tidbit while driving a U-haul truck from Northern California to San Diego. The first time I went to fill up the truck, I just turned on the pump and got back in the truck while it filled the tank. I really didn't want to look while the tally climbed into the hundreds. Eventually, I heard the click, removed the pump, and resumed my journey south. That's when I noticed the gauge was not sitting on "F". I was afraid there was something wrong with the gauge until I pulled in for my next fillup. This time I paid attention and as the total price neared $75, the pump began stopping. Then I noticed a small sign on the pump that said "In an effort to keep the cost of gas low (yes it really said that!!) we have limited each purchase to $75. Feel free to begin a second transaction if you exceed that amount."
I am dying to know how the $75 cutoff saves them money. All that know is that I had to load up 3 times at the $75 limit plus one more $60 fillup to reach my destination. I don't know how those truckers do it.