$4 gas cuts Walmart gallons, reshapes fast food, and drains convenience stores’ sales

If you want the cleanest read on U.S. consumer stress right now, don’t start with credit cards or retail headlines. Start with a tank of gas.

Walmart CFO John David Rainey said that for the first time since 2022, Walmart customers and Sam’s Club members are buying an average of less than 10 gallons per trip. That matters because gas spend is a “catalyst” budget line item: Trevor Chapman, a communications executive in West Hills, California, put it plainly. Instead of casually pulling into the nearest independent station, he and his wife plan fuel stops around Costco locations. The result is not just different driving. It’s a behavioral signal that drivers are trying to reduce exposure to tomorrow’s prices by buying less today.

Rainey framed it as “an indication of stress,” and the data around the category supports that interpretation. Members-only wholesale clubs like Costco, Walmart’s Sam’s Club, and BJ’s Wholesale Club have seen more traffic at their fuel pumps since the war began in late February, largely because fuel is typically cheaper at these locations. But the key shift is that people are still going, just not filling up. Costco CFO Gary Millerchip said in late May that members are visiting store gas stations more frequently to “top up in between what would have normally been a gap between getting the tank to empty” due to concerns about what gas price will be tomorrow. This is what “rationing” looks like before it becomes a collapse. The trip frequency increases, the purchase size shrinks, and the overall budget friction rises.

That friction is punching through the rest of retail in uneven ways, and the ripple is already showing up in convenience store economics. Convenience stores sell 80% of all fuel in the U.S., according to Jeff Lenard, vice president at the National Association of Convenience Stores. The trade group’s sales analysis for 130 convenience store companies found pump transactions fell by nearly 10% across March and April versus the same two months last year, and in-store sales dropped by 10.4%. Lenard tied the revenue mechanism directly: “When you lose gallons to the big box, you also lose in-store sales.” In other words, the lost fuel volume is not a standalone metric. It drags down impulse purchases, snacks, beverages, and other margin-heavy behavior that convenience stores depend on.

The second-order impact is starting to hit dining out, and not evenly. Higher gas prices didn’t stop Americans from dining out early in the Iran war period, helped by tax refunds, according to the National Restaurant Association. Market research firm Circana reported that customer traffic at U.S. restaurants in April was unchanged from the same month last year, though spending rose 2.6% largely due to higher menu prices. But cracks show as refunds fade and as consumers absorb more expensive gas plus other inflation pressures.

McDonald’s Chairman and CEO Chris Kempczinski said last month that gas prices won’t help bring customers in household incomes of $45,000 or less back to fast food. Those customers began scaling back after the inflation period that accompanied the end of the COVID-19 pandemic, and the trend picked up speed last year. A related analysis from restaurant consulting firm Revenue Management Solutions reviewed 14.6 billion restaurant transactions across the last four years and found that restaurant visits gradually decline as gasoline gets more expensive. The analysis also claims the impact doubles when gas hits the $4 mark, which became a nationwide average on March 31.

That $4 number is the psychological line retailers are now circling. Dollar General CEO Todd Vasos told analysts Tuesday that $4 a gallon became a tipping point, with more consumers with household incomes above $100,000 frequenting the discount chain. Meanwhile, his comments acknowledged the tension in the same shift: Dollar General’s core shoppers, who have mid-to-low incomes and live in rural areas, are paring back food spending as gas costs rise. Even the anecdotal details underline the mechanics. Sophie Tolsdorf, 29, of La Grange, Kentucky, said she stocks up on meat when price is reasonable, switched to whole fruit instead of pre-cut fruit in containers, and cut back on $40 rawhide bones for her dog. When budgets get tight, the “wants” that are easiest to delay disappear first.

Groceries are a good example of how consumers are rerouting spend without totally stopping consumption. Stew Leonard, president of Stew Leonard’s (an eight-store supermarket chain his father founded), said he has seen customers buying meat in bulk to freeze and being less tempted by live demonstrations or samplings. “It’s telling me that people are sticking more to their shopping list,” Leonard said. That’s consistent with broader retail movement: consumers appear to be choosing value-oriented outlets and minimizing discretionary browsing. Circana’s Marshal Cohen reported that between April 25 and May 23, U.S. retailers sold 6% fewer non-grocery products than they did during the comparable four-week period in 2025. Housewares, clothing, footwear, and sports equipment saw the biggest declines, anywhere from 5% to 7%. Toys and beauty items stayed bright spots, registering at least an 8% increase in units sold.

Movement data supports the same “prioritize essentials, reduce wandering” story. Placer.ai, which tracks visits using cellphone usage, said visits to BJ’s, Costco, and Sam’s Club gas stations started accelerating in early March as fuel prices rose. By early May, Placer.ai’s data showed four consecutive weeks of reduced foot traffic at clothing, electronics, and home furnishing stores, and more trips to grocery stores and dollar stores. R.J. Hottovy, head of analytical research at Placer.ai, summarized the direction: “Consumers are prioritizing value-oriented retailers like warehouse clubs, superstores, and off-price chains.”

For executives, the strategic stakes are simple and uncomfortable. This is not a straight-line consumer crash. Spending hasn’t stopped, but the pattern is changing: smaller fuel purchases, more frequent “top-ups,” and delayed discretionary purchases. If income tax refunds helped cushion the early phase, the lingering question becomes what happens when that cushion disappears and gas costs remain high enough to keep the budget squeeze active. For retailers, convenience chains, and restaurant operators, the takeaway is that category-level changes in gasoline behavior are already translating into store-level traffic shifts and sales mix damage. The winners are not those who sell “more.” The winners are those whose value proposition survives when consumers stop filling tanks, and start measuring every discretionary stop like it costs them.