How Much Will High Gas Prices Change The Way Americans Drive In 2026?

Last Updated: October 3, 2026 | Read Time: 10 minutes

GasBuddy predicted in early 2026 that Americans would pay an average of $2.97 per gallon for gasoline this year. That forecast was made before the US-Israel military offensive against Iran began in late February 2026. By the end of March, the national average had crossed $4 per gallon for the first time since August 2022. By the week of September 21, 2026, the U.S. Energy Information Administration recorded the national average at $4.478 per gallon. AAA reported $4.4825 on September 24. Diesel was $6.53 in the EIA/FuelWide September snapshot used for this article. California was $6.37 in the September 28 state snapshot used below.

At about $4.48 per gallon, AAA reported that the national average was the highest it had ever been for this time of year. Typically, the start of autumn brings lower gas prices, but lingering volatility in the Strait of Hormuz and the high cost of crude oil are driving up pump prices. This month is on track to set a new September record. So far, the average for this month is $4.30, higher than the previous September record of $3.83 set in 2023. Source: AAA Fuel Prices, September 24, 2026.

The question worth answering is not whether $4.48 gasoline makes American drivers uncomfortable. It obviously does. The more useful question is what Americans actually do differently when gas costs this much. Do they drive less? Buy EVs? Take the train? Consolidate errands? And what does the actual 2026 data show, as opposed to what people say they plan to do when a survey asks them?

The answers are more complicated — and more interesting — than the simple narrative that high gas prices will accelerate the EV transition. They reflect the specific financial, geographic, and logistical realities of American life in 2026, and they tell a story about behavioral change that is gradual, practical, and shaped as much by what is not available as by what is.

 At A Glance – Gas Prices And American Driving 2026 

** National Average (week of Sep 21, 2026): $4.478/gallon regular — EIA; AAA reported $4.4825 on September 24

** Diesel National Average (Sep 21, 2026): $6.53/gallon — EIA/FuelWide snapshot

** Most Expensive State: California — $6.37/gallon (AAA, Sep 28, 2026)

** Cheapest State: Indiana — $3.88/gallon (AAA, Sep 28, 2026)

** 2026 Annual Average (year to date): $3.82/gallon — Finder.com sourced from AAA

** Six-Year Average Since 2018: $3.07/gallon — Finder.com

** 2026 vs Six-Year Average: approximately +$1.42/gallon above the long-term baseline

** 2026 Record Weekly Peak: $4.76/gallon — Finder.com

** Lowest Week in 2026: $2.81/gallon (January 8, 2026) — Finder.com

** Monthly Fuel Spend (August 2026): $139.45 average per household — Empower

** Cost per transaction (August 2026): $48.44 average — Empower

** 15-Gallon Fill-Up at Current Average: $67.20 — FuelWide / EIA

** Where Prices Were Before the Iran Conflict:

** GasBuddy forecast (January 2026): $2.97/gallon annual average

** February 2026 average: approximately $2.98/gallon — TradingEconomics

** March 2026 jump: $1/gallon increase in one month — 34.7% spike — TradingEconomics

** Gas Price Threshold Data:

** $4.00/gallon = point at which majority of Americans change driving habits — AAA

** $4.00/gallon = benchmark used in a BloombergNEF analysis for EV cost competitiveness under specified ownership assumptions

** EIA 2026 full-year forecast: $3.84/gallon average

** EIA 2027 forecast: $3.35/gallon average — LendingTree / EIA

** Primary and secondary sources used include the U.S. Energy Information Administration, AAA, IRS, Brookings, BloombergNEF, HERE Technologies/SBD Automotive survey reporting, Empower, GasBuddy and selected secondary trackers. Where possible, primary sources are preferred. Compiled September 30, 2026.

  How To Read The Data

This analysis separates observed gasoline prices, consumer surveys, vehicle-market evidence and forecasts. Forecasts are not treated as actual outcomes. State prices are compared using the same late-September reporting window where possible. Calculations in this article are illustrative and show their assumptions rather than being presented as national averages. When a source describes a historical behavioral threshold, that threshold is treated as a benchmark rather than a universal rule for every driver in 2026.

  What The Data Actually Shows 

  The Context: From $2.97 Forecast To $4.48 Reality 

The 2026 gasoline-price story has to begin with the Iran conflict because it is the central event behind the sharp spring increase in U.S. pump prices. GasBuddy’s January 2026 forecast reflected the market assumptions available at the time, before the conflict and the subsequent disruption to global oil markets. The prediction of a sub-$3 national average for 2026 would have meant the fourth straight year of declining gasoline prices, and it would have been good news for nearly every American household.

US gasoline prices soared in March 2026, with the EIA reporting an average of $3.638 per gallon, the highest since September 2023. AAA data showed the national average hitting $4.02 per gallon by month-end, topping $4 for the first time since 2022, as the Middle East conflict disrupted global oil markets. Prices at the pump jumped by $1 per gallon in just one month following the US-Israel offensive against Iran, marking a 34.7% increase from February’s $2.98. Source: Trading Economics, March 2026 gasoline-price data.

That speed matters. A gradual price increase of $1 over six months gives drivers time to adjust purchasing decisions, plan alternative transportation, and absorb the cost across a series of budget adjustments. A $1 increase in one month hits household budgets with the bluntness of an unexpected bill. For a driver filling a 15-gallon tank twice a week, March’s price jump added approximately $30 per week — $120 per month — to their fuel cost with almost no warning.

The average gas price was $4.15 per gallon on September 8, 2026, up 29.7% from $3.20 per gallon a year earlier but down 7.3% from the recent peak of $4.48 per gallon in May. The average monthly gas price rose to $4.06 per gallon in August 2026, from $3.93 in July 2026 and $4.05 in June 2026. Source: LendingTree September 2026 gas-price study.

The peak in May — $4.48 per gallon — and the current September figure of $4.48 tell a story of sustained price pressure rather than a single spike and recovery. Gas prices have been above $4.00 per gallon since late March 2026. That is roughly six consecutive months at or above the threshold that AAA identifies as the tipping point for behavioral change. Six months is long enough for habits to shift, for vehicle purchase decisions to be influenced, and for household budget adjustments to become structural rather than temporary.

The September 24 national average of about $4.49 a gallon was higher than the six-year average cited by Finder, by approximately $1.42 per gallon. National average: The current national average cost for gas is $4.49 (Sep. 24, 2026). Annual average: The annual average cost for gas in 2026 is $3.82. Most expensive week to buy gas in 2026: the $4.76 peak. Cheapest week: January 8, 2026 at $2.81. Source: Finder gas-price tracker, September 2026.

    The $4 Tipping Point And Why It Matters

The $4.00 per gallon number appears repeatedly in gas-price research, but it should be treated as a research benchmark rather than a universal behavioral law. AAA consumer research has identified $4 as a point at which many Americans report changing driving habits, while EV cost-competitiveness analyses use different assumptions and should not be interpreted as a universal break-even price.

On the behavioral side, AAA consumer research has identified $4 per gallon as a level at which a majority of Americans reported making changes to driving habits or lifestyles during earlier price-spike periods. The 2026 national average again moved above that benchmark, but that does not by itself prove that every behavior measured in earlier surveys is occurring at the same rate in 2026. The useful takeaway is that $4 is a historical behavioral reference point, not a universal switch.

On the economics side, BloombergNEF has used gasoline-price benchmarks around $4 per gallon in analyses of EV cost competitiveness. The result depends on the vehicle, electricity price, annual mileage, purchase price, maintenance, insurance, depreciation and other ownership assumptions. It should therefore be read as an analytical benchmark, not a universal EV break-even point for every American buyer.

Gas prices are averaging $4.14 per gallon nationally as of September 3. Californians are paying the most per gallon at $5.78, while Indiana residents currently enjoy the cheapest gas prices in the country at $3.45. Gas is still 24.6% more expensive than a year ago following price surges earlier in 2026. Source: Empower, August/September 2026 gasoline-spending data.

The 24.6% year-over-year increase captures the sustained nature of the 2026 price environment. A year-over-year increase of that magnitude, maintained across most of the year, is the type of persistent cost increase that moves from inconvenience to genuine financial planning consideration for most American households.

As of August 2026, drivers nationwide spend $139.45 a month on average, at $48.44 per transaction. Source: Empower, August/September 2026 gasoline-spending data.

$139.45 per month on gasoline is not an abstraction. It is a rent payment, a grocery bill, a car insurance premium. It sits in a household budget as a visible, recurring, discretionary-adjacent cost that Americans can compare to alternatives in a way that is harder to do with a $30 per month increase absorbed slowly. And it is the cost at average consumption. Households with multiple vehicles, longer commutes, or older less-efficient vehicles are spending meaningfully more.

  How American Driving Habits Are Actually Changing 

The behavioral data from 2026 reveals a pattern that consistently emerges during sustained high-price periods: significant modification of discretionary driving, much more limited change in non-discretionary driving, and growing interest in vehicle alternatives without yet a matching surge in vehicle changes.

** Trip consolidation is a common practical response. American drivers report combining errands into single trips, reducing the number of separate outings per week, and planning routes more deliberately to avoid backtracking. This behavior is difficult to see in aggregate fuel-consumption data because it may reduce wasted miles more than total miles. For illustration, a driver who eliminates 20 to 40 unnecessary miles per week in a 25-MPG vehicle at $4.48 per gallon would save approximately $3.58 to $7.17 per week. That is an example calculation, not a claim that the average American saves that amount.

** Speed reduction can improve fuel economy, but the national 2026 effect should not be overstated. The relationship between speed and fuel economy is well documented, with fuel economy generally declining at higher highway speeds. The exact optimum varies by vehicle, road and driving conditions. Earlier price-spike research can inform the discussion, but it should not be presented as proof that the same measured speed shift has already occurred nationally in 2026.

** Summer travel faced a stronger cost incentive to change. California had among the nation’s highest gasoline prices during the summer, and several states moved above $5.00 per gallon. High fuel costs can influence discretionary travel decisions, but the price data alone does not establish a national percentage of families who shortened or cancelled road trips. Those behavioral effects should therefore be treated as an area for ongoing measurement rather than a settled 2026 statistic. Source: LendingTree September 2026 gas-price study.

** Commute behavior is changing less than leisure driving. The non-discretionary nature of the American commute is the most important factor limiting gas prices’ behavioral impact. For the majority of American workers, driving to work is not optional — public transit routes do not connect home to office, schedules do not align with work hours, or the commute distance simply makes alternatives impractical. The behavioral response to $4.48 gas concentrates on the trips that can be reduced or eliminated, not on the daily commute that cannot.

  What Americans Say VS. What They Actually Do 

  The Geographic Reality : Not One Country, Many Markets 

Across all 50 states and DC, California has the most expensive regular gas at $6.37/gallon, while Indiana is the cheapest at $3.88/gallon in the September 28 snapshot used for this comparison. Source: AAA late-September state-price data.

A $2.49 spread between the most and least expensive states shows why national averages can obscure the experience of individual drivers. A driver paying $6.37 per gallon faces a materially different fuel-cost calculation from a driver paying $3.88. The appropriate response still depends on income, mileage, vehicle efficiency and available alternatives; the price difference alone does not dictate a particular decision.

In the earlier September snapshot cited by LendingTree, Indiana had the lowest average gas price at $3.42 per gallon, followed by Texas ($3.67) and Oklahoma ($3.71). These figures refer to a different reporting date from the later September 28 state snapshot above and should not be mixed as if they were simultaneous. Average gas prices increased in every state from September 2025 to September 2026. Wyoming recorded the largest increase in average gas prices, rising 39.1% from $3.14 to $4.37 per gallon. Source: LendingTree September 2026 gas-price study.

The state-level data also shows that the Iran conflict’s price impact was not uniform. Wyoming’s 39.1% year-over-year increase reflects the compound effect of the Iran conflict on a state that was already in a specific pricing context. Indiana’s increase, while smaller in percentage terms, still represents meaningful per-gallon cost growth. The specific experience of any American driver depends enormously on where they live, what type of vehicle they drive, and how many miles their lifestyle requires.

The urban-rural divide is equally significant. Urban drivers in cities with functional transit systems — New York, Chicago, San Francisco, Washington DC — generally have more alternatives to driving when gas prices spike. Rural drivers often have fewer practical alternatives. The size of that difference depends on local transit coverage, commute patterns, household vehicle ownership and geography, so it is better treated as a structural constraint than as a universal rule.

   The EV And Hybrid Response: Interest VS Conversion 

The most discussed behavioral response to high gas prices is EV adoption, and the 2026 data is instructive about the gap between what people say they will do and what they actually do.

Survey data shows that high gas prices can raise expressed interest in EVs, but interest is not the same as conversion. A September 2026 survey by HERE Technologies and SBD Automotive, reported by Axios, found that 56% of drivers said high gas prices had increased their interest in EVs. That is an important demand signal, but it is not an EV sales figure. The path from interest to purchase still involves price, financing, charging access, vehicle availability and individual driving needs.

One important change in 2026 is the end of the federal clean-vehicle tax credits for vehicles acquired after September 30, 2025. The IRS states that the New Clean Vehicle Credit, Previously-Owned Clean Vehicle Credit and Qualified Commercial Clean Vehicle Credit are not available for vehicles acquired after that date. Without that federal incentive, the economics of a new EV purchase must be evaluated using the vehicle’s actual price, financing, energy costs, maintenance, insurance and expected resale value rather than assuming the former federal credit.

The Energy Information Administration forecasts that gas prices will average $3.84 per gallon in 2026 before falling to $3.35 per gallon in 2027. Source: EIA Short-Term Energy Outlook, September 2026.

The EIA’s 2027 forecast of $3.35 per gallon matters here. A buyer considering an EV purchase in late 2026 is not just responding to current prices — they are betting on how long those prices will remain elevated. If gas falls to $3.35 per gallon in 2027, the financial case for EV adoption weakens substantially. The uncertainty about whether current prices represent a new permanent plateau or a temporary conflict-driven spike is itself a barrier to the vehicle purchase decisions that high gas prices nominally encourage.

Plug-in hybrids offer a practical middle path. A PHEV can reduce gasoline use for drivers who can regularly charge and whose daily travel fits within the vehicle’s electric range, while retaining a gasoline engine for longer trips. That does not mean PHEVs are universally cheaper or that they are capturing more demand than EVs; those claims require vehicle-sales data. For a buyer with a 30-to-40-mile daily commute, however, a PHEV can be a useful option to compare against both conventional gasoline vehicles and full EVs.

    What The California Case Study Shows The Rest Of America

California had the highest average gasoline price on September 4 at $5.81 per gallon, or 40.0% above the national average. Source: Choose Energy September 2026 state-cost report.

California provides a useful case study for what sustained high gas prices can do to vehicle and transportation choices, although gas prices are only one of several factors influencing California’s EV adoption. The state consistently has the highest gasoline prices in the contiguous 48 states, and it also has the highest EV adoption rate — approximately 25% of new vehicle sales in recent periods. California’s high EV adoption reflects a combination of factors that include gasoline prices, charging infrastructure, state policy, vehicle availability, household characteristics and geography. The association between high fuel prices and EV adoption is therefore informative, but it should not be treated as proof that gasoline prices alone caused the state’s adoption rate.

But California also shows the limits of gasoline prices as an EV adoption driver acting alone. Even with very high gasoline prices, most new-vehicle purchases are still not battery-electric vehicles, illustrating that purchase price, charging, vehicle choice and household needs remain important. The buyers who have not converted despite years of very high gasoline prices have specific reasons: they cannot afford the upfront EV premium, they live or work where charging is impractical, they drive patterns that do not work within current EV range, or they simply prioritize other financial considerations.

The California case also shows the importance of alternatives for drivers who do not buy EVs. Transit availability, vehicle efficiency, charging infrastructure and local travel patterns all affect how households respond to high fuel costs. Those factors are relevant to the rest of America as prices move higher, but the California experience should not be treated as a one-variable experiment.

   What Happens At $4.48 Versus $5 Versus $6

The behavioral response to gasoline prices is not necessarily linear. Earlier research suggests that price thresholds can matter, but the ranges below should be treated as an analytical framework rather than universal behavioral laws. Actual responses vary by income, geography, vehicle efficiency, annual mileage and transportation alternatives.

At $3.50 per gallon, many households would face less fuel-cost pressure than at $4.50 or $6.00, but the exact behavioral response varies widely. Consumers may make small changes that are easy to reverse, while households with high mileage or tight budgets may respond at lower prices.

At $4.00 per gallon, the AAA-documented historical benchmark becomes relevant. Earlier AAA research found that a majority of consumers reported making changes at this level. That can include trip consolidation, reduced discretionary driving and greater attention to fuel efficiency, but the 2026 evidence should be evaluated separately from those earlier survey results.

At $4.48 — approximately the late-September national average — the financial incentive to reduce discretionary fuel use is stronger. The 2026 HERE Technologies/SBD Automotive survey provides evidence that EV interest has increased, while household fuel-spending data shows the direct budget impact. The available evidence is stronger for increased interest and higher costs than for a precisely measured national shift in summer travel or driving frequency.

At $5.00 and above — levels reached in several states during 2026 — the economic incentive to examine fuel-saving options becomes stronger. Whether that produces structural changes depends on household finances, transportation alternatives and how long prices remain elevated.

At $6.00 and above — reached by California in late September — the fuel-cost burden becomes particularly visible. It is reasonable to expect stronger consumer attention to fuel efficiency and alternatives, but a national causal threshold for EV/PHEV adoption or transit ridership should not be inferred from the gasoline price alone.

The current national average of about $4.48 sits above the historical $4 behavioral benchmark but below the highest state-level prices. The specific response of any American driver depends on financial situation, geography, vehicle efficiency, annual mileage and available alternatives.

  The Practical Questions American Drivers Should Answer 

For drivers trying to make rational decisions in the current environment, the relevant questions are specific to individual circumstances.

What $4.48 Gasoline Means For Your Fuel Bill

The following table is a simple calculation using $4.48 per gallon. It is not a forecast and does not include changes in driving behavior, maintenance, insurance or vehicle purchase cost.

The calculation is: annual miles ÷ MPG × $4.48. This is why the same national gasoline price can have very different effects on different households. A driver covering 20,000 miles in a 15-MPG vehicle has a very different exposure to fuel prices from a driver covering 10,000 miles in a 40-MPG vehicle.

A second useful comparison is the cost of a 15-gallon fill-up:

These calculations help translate a national average into the number most drivers actually feel: the amount charged at the pump.

** Is your daily commute compatible with a PHEV or EV? If you drive 40 miles or fewer per day and have reliable charging access, an EV or PHEV may reduce gasoline consumption substantially. The exact savings depend on electricity rates, vehicle efficiency, charging losses, gasoline prices and purchase cost, so the comparison should be calculated for the specific vehicle and household.

** How long are you planning to keep your current vehicle? If you are 12 to 18 months from a natural vehicle replacement, the current price environment is a reasonable input into the vehicle selection decision. If you are two weeks into a five-year car payment, the EV conversation is interesting but not actionable.

** Where are you on the geographic spectrum? A California driver paying around $6.37 per gallon faces a materially different fuel-cost calculation from an Indiana driver paying around $3.88 in the September state snapshot. The financial case is genuinely different at different price points, but the final decision still depends on mileage, vehicle efficiency, electricity costs and alternatives.

** What does the EIA’s 2027 forecast mean for your decision? The Energy Information Administration forecasts gas prices will fall to $3.35 per gallon in 2027. If the EIA’s projection is approximately correct and the Strait of Hormuz situation stabilizes, the current price spike may prove to be a one-to-two year disruption rather than a permanent new baseline. That matters for the economics of an EV purchase made primarily to escape gas prices. Source: EIA Short-Term Energy Outlook, September 2026.

** Are there near-term savings available without a vehicle change? The behavioral adjustments that do not require a new vehicle — route optimization, moderate highway speeds, correct tire pressure, trip consolidation, and fuel-discount programs — can reduce fuel use. The exact percentage depends on the vehicle and driving pattern, so a universal 10-to-15-percent savings figure should not be assumed without a specific baseline.

 What The Rest Of 2026 Looks Like 

According to new data from the Energy Information Administration, gasoline demand increased last week from 8.79 million barrels per day to 8.84 million. Total domestic gasoline supply decreased from 207.7 million barrels to 206 million. Source: AAA Fuel Prices, September 24, 2026.

The late-September demand and supply figures show why near-term price relief was uncertain at that point. Higher demand combined with lower gasoline supply can put upward pressure on prices, although crude prices, imports, refinery operations and market expectations also matter. The AAA September 24 statement that this month is on track to set a new September record confirms the direction of the current trend.

GasBuddy’s January 2026 forecast called for a $2.97 national gasoline average, but that forecast was made before the later 2026 geopolitical disruption. It should now be treated as a historical forecast rather than a current estimate. Source: GasBuddy January 2026 forecast.

That January forecast is no longer a useful estimate of the 2026 annual average. The EIA’s September 2026 outlook instead projected an average of $3.84 per gallon for 2026 and $3.35 for 2027. Any return toward lower prices remains conditional on crude-oil markets, geopolitical risk, refinery operations, supply and demand. A specific $3.50-to-$3.75 path within 12 to 18 months should therefore be treated as a scenario, not a forecast.

Some behavioral changes may persist after prices fall, especially vehicle purchases already made and habits that are convenient to maintain. But the duration of those effects is uncertain. If gasoline prices move toward the EIA’s $3.35-per-gallon 2027 forecast, the immediate fuel-cost incentive for a new EV purchase would be weaker than it is at $4.48.

  FAQ

What is the national average gas price in September 2026?

The EIA reported $4.478 per gallon for regular gasoline for the week ending September 21, 2026. AAA reported $4.4825 on September 24 and said it was the highest national average it had ever recorded for that time of year. The state figures in this article use the September 28 snapshot cited above. Diesel was $6.53 in the September EIA/FuelWide snapshot used here.

Why are gas prices so high in 2026?

The conflict and associated disruption in global oil markets were central drivers of the 2026 spring price surge. AAA has cited lingering Strait of Hormuz volatility and high crude-oil costs as continuing drivers. Brookings estimated that the conflict had raised U.S. gasoline prices by about $1 per gallon by early April. GasBuddy’s $2.97 forecast was made before the conflict and is now best treated as a historical forecast.

At what gas price do Americans change their driving habits?

AAA research provides a historical $4.00 behavioral benchmark. The national average moved above $4 in 2026, but the 2026 evidence should not be assumed to reproduce every finding from earlier surveys. BloombergNEF’s EV cost-competitiveness analysis should likewise be understood as dependent on its ownership assumptions rather than as a universal $4 break-even rule.

How much are Americans spending on gas per month in 2026?

According to Empower financial data, American drivers spent an average of $139.45 per month on gasoline in August 2026, at $48.44 per transaction. At $4.48 per gallon, a 15-gallon fill-up costs $67.20. The $3.82 year-to-date average and $3.07 six-year average are the figures cited by Finder’s September tracker and should be understood as tracker-derived measures rather than the same thing as an EIA official annual average.

Is 2026 a good year to buy an EV because of high gas prices?

For buyers who have home charging access and can manage the purchase price, high gasoline prices can strengthen the fuel-cost case for an EV or PHEV. However, the federal clean-vehicle credits are no longer available for vehicles acquired after September 30, 2025, according to the IRS. The EIA’s $3.35-per-gallon 2027 forecast would also reduce the fuel-cost advantage compared with today’s prices. The right comparison is therefore a vehicle-specific total-cost calculation rather than a universal conclusion that 2026 is the right year to buy an EV.

The Bottom Line 

The 2026 gas price story is the story of a major geopolitical shock hitting an American driving population that was expecting price relief and instead facing record-high September gasoline prices for the time of year, according to AAA. The $4.48 national average, the $6.37 in California, the $6.53 diesel, the $139.45 monthly household fuel bill — these are real numbers with real consequences for real household budgets across the country.

What those numbers are producing in terms of behavioral change appears significant but not yet transformational. The strongest current evidence is the direct increase in fuel costs and the rise in EV interest reported in the 2026 HERE Technologies/SBD Automotive survey. Other changes — such as reduced discretionary trips, modified summer travel and increased PHEV purchasing — require careful measurement in full-year 2026 data before their national scale can be stated with confidence.

What the $4.48 national average has not yet demonstrated is a dramatic, rapid EV sales response proportional to the increase in gasoline prices. The federal tax credit removal, the sustained price uncertainty from a volatile geopolitical situation, the charging infrastructure gaps, and the simple affordability math of an average new EV at a meaningfully higher price than an equivalent gas vehicle — all of these are friction in the system that price alone cannot overcome.

The evidence available by September 30, 2026 supports a more measured conclusion: high gasoline prices are increasing the financial pressure to use less fuel and are raising interest in electrified vehicles, but the conversion from interest to actual vehicle purchases remains constrained by price, charging access, vehicle choice, policy and uncertainty about future gasoline prices.

If a larger transition follows, infrastructure, affordability, vehicle availability and policy will matter alongside gasoline prices; fuel cost is one part of the decision rather than the entire mechanism.

Editorial Note 

This article was written and reviewed October 3, 2026. Primary publications are preferred wherever available, while selected secondary sources are used for consumer-spending, survey and tracker data.

Gas price figures — EIA weekly retail prices: $4.478/gallon for the week ending September 21, 2026; AAA: $4.4825 on September 24; later AAA national and state snapshots are used where specifically identified. The September state comparison uses the same late-September reporting window. Finder-derived figures include the $3.07 six-year average, $3.82 2026 year-to-date average, $4.76 weekly peak and $2.81 January low cited in the original dataset.

September record characterization — AAA press statement dated September 24, 2026: “At about $4.48 per gallon, AAA reported that the national average was the highest it had ever been for this time of year.” Strait of Hormuz volatility cited as ongoing driver.

Year-over-year increase and monthly averages — LendingTree September 2026 study, with its stated AAA/EIA source data. These figures are date-specific and are not mixed with later September snapshots.

Iran conflict price impact — TradingEconomics March 2026 gasoline-price series, supplemented by Brookings’ April 2026 estimate that the conflict had raised U.S. gasoline prices by about $1 per gallon.

Monthly household spending — Empower financial data: $139.45/month average, $48.44/transaction, August 2026.

EV-interest survey — HERE Technologies/SBD Automotive 2026 survey, reported by Axios on September 9, 2026: 56% of drivers said high gas prices increased their interest in EVs.

Household fuel-cost impact — Brookings, April 27, 2026: estimated that the conflict-related $1/gallon increase raised gasoline spending by about $70 per month for median-earning two-driver households.

California premium and state comparisons — AAA late-September state data, with Choose Energy and LendingTree used only where their specific reporting dates are identified.

GasBuddy 2026 forecast — GasBuddy annual forecast published January 2026: $2.97/gallon annual average before Iran conflict.

EIA 2026 and 2027 price forecasts — $3.84/gallon for 2026 and $3.35/gallon for 2027, from the September 2026 EIA Short-Term Energy Outlook; LendingTree is used as a secondary report where noted.

AAA $4/gallon behavioral benchmark; BloombergNEF EV cost-competitiveness benchmark under specified ownership assumptions; HERE Technologies/SBD Automotive 2026 survey for EV-interest data; Brookings for household fuel-cost impact.