Getting the gas you pay for

FRESNO, Calif.

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Watching the dollar amount fly sky high on the gas pump is a helpless feeling, not knowing if what you see on the display really measures up in your tank.

"You're at their mercy. I mean, you don't know for sure. You assume it's correct, but all I know is it clicks by real fast," Karen Butts said.

And sometimes trouble can bubble up, possibly cheating drivers out of money.

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