A Circle K gas station in Avon, Ohio, mistakenly swapped diesel and unleaded fuel, leaving customers with costly car repairs.

At least 14 customers said they inadvertently filled up their vehicles with the wrong fuel on Jan. 19 at a gas station in ...

But that's not the only way to save money at the pump. Enrolling in a gas rewards program is another option for saving money on fuel purchases ... program for a gas station that you visit ...