Key Points
- Walmart+ members save up to 10 cents per gallon at more than 14,000 participating stations, including Exxon, Mobil, Murphy USA, Sam's Club, and Walmart Fuel Centers, making this one of the most accessible gas discount programs in the country.
- The activation process differs by station type: Exxon and Mobil require a QR code scan in the app, Murphy USA uses a 6-digit redemption code, and Walmart Fuel Centers use in-app payment or a simple app scan.
- Amex Platinum cardholders can get Walmart+ at no out-of-pocket cost through the card's monthly $12.95 statement credit, which means the gas savings are essentially free on top of a membership that already pays for itself.
Gas prices have a way of quietly draining your travel budget before your trip even starts. If you're filling up a 15-gallon tank twice a week and paying full price, you're leaving real money on the table. The Walmart+ gas discount won't make you rich, but at 10 cents per gallon across more than 14,000 stations nationwide, it's one of the easiest recurring savings available to anyone already holding a Walmart+ membership or the Platinum Card from American Express.
The problem? The redemption process is genuinely confusing the first time you try it. It varies depending on which gas station brand you're standing at, and the in-station signage doesn't always make it obvious what you're supposed to do. This guide walks you through every station type, the actual numbers, and how to layer the discount with a rewards credit card to squeeze even more value out of every fill-up.
What Is the Walmart+ Gas Discount?
Walmart+ is a membership program that costs $12.95 per month or $98 per year. It competes directly with Amazon Prime, offering free grocery delivery, free shipping on Walmart.com orders, and a handful of other perks. The fuel benefit is one of its strongest everyday advantages and one of the credit card benefits most people overlook when they carry the Amex Platinum.
Here's what the discount looks like across each participating network:
Exxon and Mobil stations: 10 cents per gallon off (5 cents in Alabama and Oklahoma due to state pricing law restrictions). This is the largest network by far, covering roughly 12,000 locations nationwide.
Murphy USA and Murphy Express: 5 to 10 cents per gallon off, depending on location and state laws. Murphy operates more than 1,700 locations, most of which sit adjacent to Walmart Supercenter locations.
Walmart Fuel Centers: 10 cents per gallon off at nearly 500 locations across the country.
Sam's Club Fuel Centers: Member pricing, even if you don't hold a Sam's Club membership. With nearly 600 Sam's Club fuel locations, this matters most in areas where Sam's Club prices already run well below the local market rate. In many markets, that price differential alone exceeds 10 cents per gallon.
Add those networks together and you're looking at over 14,000 stations where your Walmart+ membership delivers savings at the pump.
How Much Can You Actually Save?
Let's put some numbers on this before going through the how-to steps, because the math is genuinely motivating.
The average American driver uses roughly 40 gallons of gas per month. At a 10-cent-per-gallon discount, that's $4 per month, or $48 per year. A heavier driver covering 15,000 miles annually in a vehicle averaging 25 miles per gallon burns through about 600 gallons per year. That's $60 in annual savings, just from the gas discount.
At $98 for an annual Walmart+ membership, a driver burning 1,000 gallons per year saves exactly $100 at the 10-cent tier, covering the membership cost on fuel alone. Add in the free grocery delivery, the Paramount+ Essential subscription included with Walmart+, and any Walmart.com shipping savings, and the membership economics become straightforward. When you're weighing a subscription like this, the same framework applies as with any annual fee decision: add up only the benefits you'll actually use.
If you have the Platinum Card from American Express, the math gets even better. The card provides up to $12.95 per month (plus applicable taxes) in statement credits toward a Walmart+ monthly membership, totaling up to $155 annually. Enrollment is required, and you need to have the Platinum Card set as your payment method on the Walmart+ account. With that setup, every cent of gas savings is pure upside on top of a free membership. Keep in mind the credit only applies to the monthly membership plan, not the annual plan, so make sure you're billed monthly if you want the credit to apply each month.
How to Use the Walmart+ Gas Discount: Step-by-Step by Station Type
You'll need the Walmart app on your phone. The web interface won't help you at the pump. Once you're in the app, the path starts the same way regardless of which station you're at: tap Services at the bottom of the screen, then tap Gas savings (sometimes labeled Member prices on fuel). This opens your camera and also displays your 6-digit redemption code at the bottom of the screen.
From here, the process splits depending on where you're filling up.
At Exxon and Mobil Stations
Look around the pump for a small blue QR code. It's often unmarked or placed near the Walmart+ signage on the pump. Scan that QR code using the camera that opened in your Walmart app. The app will ask you to enter your pump number. Do that, confirm, and watch your per-gallon price drop by 10 cents. You'll get a digital receipt in the app when you're done.
One important note: don't try to enter the 6-digit code at an Exxon or Mobil pump. That code is only for Murphy stations. At Exxon and Mobil, the QR scan is how the system identifies you as a Walmart+ member and syncs directly to the pump.
At Murphy USA and Murphy Express Stations
Here's where that 6-digit redemption code in the app comes into play. When the pump screen asks for a loyalty ID or discount code, enter your 6-digit code from the Walmart app. Select your fuel grade, pay, and fill up. Murphy stations do not provide digital receipts through the app, so ask for a printed receipt if you want documentation. Your savings will appear in the Walmart app's purchase history after the transaction.
At Walmart Fuel Centers
Walmart's own fuel centers give you two options. You can use the Pay at Pump feature within the app's Gas savings section to pay directly through the app, in which case the discount applies automatically. Or you can go inside and pay at the register; just show your app barcode to the associate.
At Sam's Club Fuel Centers
Sam's Club locations work a bit differently. Open the Sam's Club section of the Walmart app (or the Sam's Club app if you have it) and use the scan-to-pay feature at the pump. Walmart+ members are recognized in the system and receive Sam's Club member pricing. You won't always get the flat 10-cent discount here; instead, you're paying the Sam's Club member price, which is typically set below the local market rate.
Finding Participating Stations Near You
Within the Walmart app's Gas savings screen, there's a Find a Station map that shows every participating location in your area. You can also use the Exxon Mobil station locator on their website, GasBuddy's filter options, or just search for "Walmart fuel center near me."
The station locator in the Walmart app is generally accurate, but it doesn't always reflect real-time price data. For current price comparisons, GasBuddy is your best supplemental tool, especially when you're trying to decide between a Sam's Club location and a nearby Exxon.
The Credit Card Layer: Stacking Rewards on Top of the Discount
The Walmart+ gas discount reduces your pump price, but it doesn't prevent you from earning credit card rewards on the discounted price you actually pay. This is where it gets interesting for points enthusiasts. Check out our full guide to the best gas credit cards for a deeper breakdown, but here are the strongest options to pair with Walmart+.
The Platinum Card from American Express earns 1x Membership Rewards point per dollar on gas (not a bonus category), but if you're already getting the free Walmart+ membership through the card's credits, you're effectively earning points on a membership you aren't paying for. The net value calculation shifts entirely.
U.S. Bank Altitude Connect Visa Signature Card earns 4x points per dollar at gas stations. Stack that rate on top of your Walmart+ discount at an Exxon or Mobil, and you're getting the lower pump price and accelerated points on every gallon.
Wells Fargo Autograph Card earns 3x points per dollar on gas stations. No annual fee, a solid rewards rate, and it works at any of the 14,000+ Walmart+ partner stations without network restrictions. See our full Wells Fargo Autograph review for the complete picture.
Costco Anywhere Visa by Citi earns 4% cash back on eligible gas purchases up to $7,000 per year. If you're driving significant miles, this card's gas rate is genuinely hard to beat, and the Walmart+ discount doesn't interfere with the cash back earning.
For most people, the ideal combination is using the Amex Platinum to cover the Walmart+ membership cost through its monthly credit, then paying for gas itself with a card that has an actual gas bonus category. The how to transfer Amex points guide is worth reading alongside this if you want to understand where those 1x points at the pump can ultimately take you.
Common Problems and How to Fix Them
The app camera won't scan the QR code. Make sure you're using the camera within the Walmart app's Gas savings flow, not your phone's native camera app. The native camera doesn't trigger the pump sync.
You entered the 6-digit code at an Exxon pump and nothing happened. That code is only for Murphy stations. At Exxon and Mobil, you need the QR scan. Walk back through the Gas savings flow and look for the blue QR code on the pump.
The station shows as participating on the map but won't accept the discount. This happens occasionally. Some stations have updated their equipment status faster than Walmart's map reflects. Try a different pump first, or contact Walmart+ member support.
You're in Alabama or Oklahoma. State pricing laws cap the discount at 5 cents per gallon at Exxon and Mobil locations. Murphy and Walmart Fuel Centers may differ depending on specific local regulations.
The app isn't loading at the pump. Download your redemption code and take a screenshot before you leave home if you're worried about connectivity. The code doesn't change within a session, though you'll want to refresh it for your next fill-up.
Is Walmart+ Worth It Just for the Gas Discount?
Not always, and it's worth being honest about that.
If you drive infrequently, live far from participating stations, or don't use any of the other Walmart+ perks, the math may not pencil out. A driver burning 20 gallons per month at the 10-cent discount saves $24 per year. Against a $98 annual membership, you'd need the delivery, streaming, and other perks to close the gap. Understanding how to pay attention to credit card annual fees is the same mental model worth applying here.
But if you're an Amex Platinum cardholder who hasn't activated the Walmart+ credit yet, go do that first. Enrollment is required through the American Express benefits portal, and you'll want to make sure your Platinum Card is set as the payment method on the Walmart+ account before your next billing cycle. The credit covers up to $12.95 per month on monthly billing. At that point, the gas savings, the grocery delivery, and the Paramount+ Essential subscription all come to you at no incremental cost.
Walmart+ vs. Other Gas Membership Programs
Amazon Prime also offers a gas benefit: 10 cents per gallon at participating BP and Amoco stations. The station network is smaller than Walmart's, and a Prime membership costs more at $139 per year. If you're already a Prime member, it's worth activating the fuel benefit, but Walmart+ has the broader station footprint by a significant margin.
Costco gas is a different comparison entirely. Costco's fuel prices typically run 12 to 25 cents below the local market before any membership cost is factored in. If you live near a Costco and fill up there regularly, you may already be capturing savings that exceed the Walmart+ discount. The two aren't mutually exclusive though. Many drivers use Costco as a primary fuel stop and Walmart+ stations as a convenient backup when they're not near a warehouse.
Frequently Asked Questions
Can I use the Walmart+ gas discount without the app?No. You need the Walmart app to activate the discount at the pump. There's no physical card or web workaround.
Does the discount apply to premium and mid-grade fuel?Yes. The per-gallon discount applies to all fuel grades at participating stations unless a specific location posts otherwise.
Can I use the discount on every fill-up?Yes, there's no monthly cap on the number of times you can use it. Each fill-up just requires a fresh activation through the app.
Does the Amex Platinum cover the annual Walmart+ plan?No. The statement credit only applies to monthly billing at $12.95 per month. If you're on an annual plan, switch to monthly billing at least one day before your renewal date to start receiving the credit.
Is the redemption code the same every time?The 6-digit code is generated fresh each time you open the Gas savings screen. It's best practice to open the screen fresh each time rather than rely on a screenshot from a previous session.
What if I'm a Sam's Club Plus member?Sam's Club Plus members get an additional 5 cents per gallon on top of member fuel pricing at Sam's Club locations. If you hold both Walmart+ and Sam's Club Plus, you can use Sam's Club fuel pricing with that stacked discount.
Bottom Line
The Walmart+ gas discount is one of those benefits that sounds modest until you actually do the math over a full year. Ten cents per gallon at 14,000+ stations, stacked on top of a gas rewards credit card with a strong bonus category, adds up faster than most people expect. And if your Amex Platinum is already paying for the membership through its monthly credits, you're capturing those savings on top of a perk you're already receiving at no extra cost.
The activation process has a learning curve, specifically the QR code vs. redemption code distinction between Exxon/Mobil and Murphy stations, but once you've done it once, it becomes second nature. Download the Walmart app, open Gas savings before you pull up to the pump, and follow the prompts for your specific station type. The first time you watch your per-gallon price drop on the pump screen, you'll wonder why you waited this long.
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