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by Dylan16807 142 days ago
As an American, I always put my card into the pump itself and then fill up. No guessing, no change, no even going inside for a normal visit.

One time I went inside to buy a can to fill up, and I also paid upfront for a gallon, which made the pump cut off automatically.

I've never tried to pay for an unknown amount of gas with cash, and never felt any need to.