Gas stations caught charging credit card users an extra $1 per gallon

A Florida man issued a warning about using credit cards at gas pumps after being shocked by the surcharge for not paying with cash.

There has always been an additional cost associated with using cards while filling up.

According to the Association for Convenience and Petroleum Retailing (NACS), the reason is that credit card companies typically take about 2.5 percent of each card transaction.

However, it seems the surcharge may have increased.

Truck driver...