Americans paid a national average of $4.53 per gallon to fill up their cars on Wednesday, and the surge in crude oil prices driven by the war in Iran is splitting the country into two very different economies at the pump. Wealthier households are absorbing the hit. Lower-income families are cutting back on driving and still falling behind.
That gap, what economists now call a "K-shaped" pattern in gasoline spending, is not a theory. It showed up clearly in the data for March 2026, as Yahoo Finance reported, citing analysis from Liberty Street Economics and a client note from Bank of America.
The picture is stark. Nominal gasoline spending spiked across the board after crude oil prices began climbing in late February and early March. But real consumption, how much gas people actually bought, moved in opposite directions depending on income. Higher earners kept driving. Lower earners pulled back. Both groups spent more money. Only one group got less for it.
New York Fed economists put it plainly: "Households had very different experiences with gasoline spending." AP News reported that the Fed's research found households earning under $40,000 cut gas consumption by 7% in March, yet still spent 12% more on gasoline. Households earning $125,000 or more reduced consumption by just 1% while increasing gas spending by 19%.
Read that again. A family scraping by on less than $40,000 drove significantly less and still paid more at the pump. A family earning three times as much barely changed its habits and simply wrote a bigger check.
That is the K-shape: one arm of the letter goes up, the other goes down, and they diverge from the same starting point. The New York Fed researchers wrote that "a K-shaped pattern in gasoline consumption emerged, showing faster consumption growth for high income households relative to low-income households" after the March price surge.
This is not the first time the pattern has appeared. The same dynamic showed up on a smaller scale during the 2022 energy crisis triggered by the Russian invasion of Ukraine. But the current spike, driven by conflict in Iran, has widened the gap further.
The consequences reach well beyond the gas station. Bank of America economists warned in a recent client note that lower-income households "are already struggling, so further erosion of their real spending power from surging energy prices could cause another leg up in [credit card and auto] delinquencies."
The bank's economists added a grim follow-on:
"In turn, this could have a lasting impact on their ability to spend, if it constrains their access to credit."
That chain of events, higher gas costs, less money for everything else, missed credit card payments, tighter lending, is how a price shock at the pump turns into a broader financial squeeze for millions of households. And it hits people who have no margin to begin with.
Lower-income households tend to be more exposed to energy price hikes because spending on electricity, gasoline, and other energy-driven necessities takes up a larger share of their income, Bank of America noted. A family spending 10% of its paycheck on gas feels a 30% price increase very differently than a family spending 3%.
The ripple effects of rising oil prices extend beyond the pump itself, into grocery bills, shipping costs, and the price of nearly everything that moves by truck.
National Economic Council director Kevin Hassett offered a rosier view from the White House on Wednesday. He said the American consumer is "really, really firing on all cylinders" and described credit card spending as "through the roof."
Hassett acknowledged the gas price increases but framed them as part of a broader spending boom. Americans, he said, are "spending more on gasoline, but they're spending more on everything else too."
That framing is technically accurate, in the aggregate. Total consumer spending is up. But aggregate numbers are precisely where the K-shape hides. When you average a household that absorbed a $200 monthly gas increase without blinking and a household that skipped meals to cover the same increase, the average looks fine. The average is misleading.
The PCE data released April 30 by the Bureau of Economic Analysis showed headline prices rose 0.7% in March over the previous month. Core PCE, which strips out food and energy, rose a more modest 0.3%. On an annual basis, headline and core PCE rose 3.5% and 3.2%, respectively, in line with expectations.
But those headline figures mask the divergence that the New York Fed and Bank of America identified. Consumer sentiment has already hit historic lows as the Iran conflict and rising gas prices rattle household budgets. The "firing on all cylinders" line may describe upper-income spending. It does not describe the experience of a single mother in a used sedan commuting 45 minutes each way to a $17-an-hour job.
When gas prices climb past $4 a gallon, people adapt, but the adaptations themselves reveal who has options and who doesn't. Wealthier households can switch to a second vehicle, work from home, or simply absorb the cost. Lower-income households face harder choices: fewer trips, skipped errands, deferred maintenance, or falling behind on other bills.
Some consumers have turned to pay-per-mile car insurance as a way to claw back savings when they drive less. It is a rational response, but it is also a sign of how tightly squeezed some households have become.
The war in Iran began pushing crude oil prices higher in late February and early March. By the time the data caught up, the damage was already baked into March spending patterns. Liberty Street Economics found the K-shaped consumption pattern "strongly evident" in both nominal and real gasoline spending that month.
Meanwhile, discretionary spending has taken a hit as gas prices, war fears, and broader economic anxiety drain household budgets of whatever cushion remained.
The K-shaped economy is not a new concept. Economists used the term during the pandemic recovery to describe how white-collar workers bounced back quickly while service-sector employees lagged behind. What is new is how visibly the pattern has migrated to the gas pump, the single most frequent purchase most American households make.
Hassett's optimism from the White House podium is not wrong on its own terms. Credit card spending is up. Consumer activity, in total, remains strong. But "in total" is doing a lot of work in that sentence. The Bank of America warning about delinquencies suggests the bottom half of the income distribution is running on fumes, literally and financially.
When lower-income households cut gas consumption by 7% and still spend 12% more, they are not participating in a boom. They are rationing. And when Bank of America's economists warn that the resulting credit stress "could have a lasting impact on their ability to spend," they are describing a feedback loop that Washington's headline optimism does nothing to address.
The open questions remain significant. How long will the Iran conflict keep crude prices elevated? Will the credit stress Bank of America flagged materialize in the next round of delinquency data? And will policymakers acknowledge the split in the economy before it widens further?
None of those questions have answers yet. What the data already shows is that $4.53-a-gallon gas is not one story. It is two, and the Americans living the harder version are not the ones briefing reporters at the White House.
An economy that looks strong from the top and fragile from the bottom is not strong. It is a problem waiting to be named honestly, and then fixed.