The offer, which will be available at stations in 18 states, is only good for those using a reloadable Walmart gift card, Walmart MoneyCard or Walmart credit card, and is scheduled to run through the end of September.
Not only is the move likely to boost usage of those financial products, it's also bound to strike a chord for families struggling to pull together summer travel plans. The Automobile Association of America recently predicted that the number of people traveling more than 50 miles from home for the 4th of July weekend, for example, will decline 2.5% to 39 million.