Gas Prices Slip Again to About $4.28 a Gallon, but Diesel Jumps Nearly 10 Cents: What It Means for Your Budget

Drivers got a little more relief at the pump this week, but anyone who fills up with diesel, or buys goods that travel by truck, saw prices move the other way.

The average price of regular gasoline in the U.S. fell to $4.284 a gallon in the week of Monday, Oct. 19, down 4.7 cents from a week earlier, according to weekly data the U.S. Energy Information Administration released on Tuesday, Oct. 20. The same report showed on-highway diesel jumping 9.7 cents to $6.276 a gallon.

How much did gas and diesel prices change this week?

Regular gas averaged $4.284 a gallon on Oct. 19, down from $4.331 a week earlier and $4.354 two weeks earlier, EIA data show. That is still $1.265 more than a year ago. Diesel rose to $6.276, up 9.7 cents in a week and $2.656 higher than a year ago.

AAA's daily survey points the same way. On Tuesday, Oct. 20, AAA's national average for regular was $4.2786, down from $4.3413 a week earlier and $4.4761 a month earlier. A year ago it was $3.0361. AAA's diesel average was $6.3199, not far below the record of $6.5276 that AAA logged on Sept. 22, 2026.

Where you live matters a lot. EIA's regional numbers for Oct. 19 ranged from $3.784 a gallon on the Gulf Coast to $5.557 on the West Coast, and California averaged $6.031. Prices fell 8.2 cents on the West Coast and 6.7 cents on the Gulf Coast, but they were flat in the Midwest and rose 2.9 cents in the Rocky Mountain region.

Why are some states seeing bigger drops?

Part of the recent decline at the pump has nothing to do with oil. Several states have temporarily stopped collecting their own gas taxes, which can lower what drivers pay at the register.

In Ohio, lawmakers suspended the state's 38.5-cent-per-gallon gas tax and 47-cent diesel tax for 90 days, starting Sunday, Oct. 4, according to the Ohio Senate, which described the move as $725 million in savings for drivers. We covered the details in our look at Ohio's gas tax holiday.

North Carolina Gov. Josh Stein signed a suspension of the state's 41-cent gas tax on Oct. 9, running through the end of November, NC Newsline reported. The state's House speaker estimated the actual break at the pump would be closer to 30 cents a gallon, partly because retailers can recoup taxes already paid on fuel in their tanks. Georgia has also suspended its 33.3-cent gas tax through Oct. 29, Newsweek reported.

A tax holiday doesn't change the price of crude oil, and it ends on a set date. When a suspension expires, the tax comes back, and prices at the pump may rise again even if nothing else changes.

What this means for your wallet

For most households, the weekly dip is welcome but small. Here is a simple example using AAA's numbers. If you fill a 15-gallon tank once a week, the drop of about 20 cents a gallon from a month ago saves roughly $3 per fill-up, or about $12 a month.

The bigger picture is less comforting. Compared with a year ago, the same 15-gallon fill-up costs about $19 more using EIA's figures ($1.265 x 15 gallons). Over four fill-ups a month, that is about $76 extra, or more than $900 over a year if prices stay near today's level.

Diesel matters even if you don't drive a diesel vehicle. Most trucks that move groceries and packages run on it, so higher diesel costs could show up indirectly in delivery fees and store prices over time. That effect is hard to measure in any single week, but it is worth keeping in mind when you plan for the holidays.

**Related read:** As we explained in our guide to sinking funds, setting aside a small amount each payday for a predictable but bumpy cost, like fuel, can keep a price spike from landing on your credit card.

• Check your actual fuel spending for the last two months. If you haven't been tracking it, our guide to tracking your spending shows a simple way to start.
• Compare nearby stations before you fill up. EIA's data show prices can vary by more than $1.70 a gallon between regions, and gaps between stations in the same town can be meaningful too.
• If you live in a state with a tax holiday, note when it ends so a price jump doesn't catch you off guard.
• Combine errands into fewer trips and keep tires properly inflated to stretch each tank a bit further.

What to watch next

The EIA's next weekly gas and diesel update is scheduled for Oct. 27. Watch whether diesel keeps climbing toward AAA's September record, and whether gasoline keeps sliding as tax holidays work their way through to the pump.

Also keep an eye on the expiration dates of state tax suspensions, starting with Georgia's on Oct. 29 and North Carolina's at the end of November. Prices in those states could rise once the taxes return. For more background on how pump prices have moved this fall, see our earlier report on gas prices after a record September.