This seems like it’s flipped around backwards. The picture says you have to pump more than 4 gallons if you are getting E15, but the explanation seems to explain why someone pumping E10 would want to pump more than 4 gallons.
I bet the real reason is that someone could pump a couple of gallons of cheaper E15, knowing they’d actually receive E10, leaving the next person to actually get that gas.
This seems like it’s flipped around backwards. The picture says you have to pump more than 4 gallons if you are getting E15, but the explanation seems to explain why someone pumping E10 would want to pump more than 4 gallons.
I bet the real reason is that someone could pump a couple of gallons of cheaper E15, knowing they’d actually receive E10, leaving the next person to actually get that gas.