@SpecFile wrote:Well folks, the Walmart gas station stands alone right next to the store.
I think you are misunderstanding the "stand alone" part. If it's right next to the store, uses the same merchant account, has the same store name on the sign, it's not exactly standalone. What would not be stand alone here in your mind? If you had to bash your car through the front door of Walmart and fill up in the produce section? 
If there are some pumps that are coded correctly, great that's a bonus, but you honestly can't expect Discover to send out lists of tens of thousands of gas stations. It would be nice of they had a MCC lookup like Visa, yes. One that worked, unlike Visa's.
@SunriseEarth wrote:
@SpecFile wrote:Don't buy gas at Walmart and expect to get 5% cashback with Discover. Our Walmart has a stand alone gas station and all purchases are coded as Retail/Merchandise and not Gasoline. Discover rep said it's not our fault that Walmart codes it that way (shocker). She advised me to go to another gas station and buy there. Wow, please let me drive across town and spend more per gallon just to get 5% back! No thanks!! For the record, I do understand that Discover is not responsible for the way that retailers code their transactions but it would sure be nice to have Discover send something out stating which gas stations are not covered under the 5% category. They simply told me that it had to be a stand alone gas station. Well folks, the Walmart gas station stands alone right next to the store.
Except Discover would have no way of knowing that. Card issuers often advise to be mindful of coding issues, as it's usually tied to the primary business description. So a grocery store that owns a gas station (or has a restaurant inside) might code as groceries. I have a convenience store near my house that got rid of their gas pumps years ago, but they still code as "gas." I can't blame a card issuer for that.
Sounds like a great place to use a Sam's MC. 
@Anonymous wrote:
Sounds like a great place to use a Sam's MC.
Or if one is not up for applying for another card, sounds like a great place to use a bunch of Walmart gift cards that one might have purchased at Walmart.com during last quarter's online shopping bonus with Discover. If the only other gas station is clear across town, I mean.