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Illinois Gas Prices Dropped 19 Cents Since Mid-August

CHICAGO, Ill., (September 11, 2023) — Illinois gas prices declined for the third consecutive week. The state average has now fallen 19 cents per gallon since mid-August.

The state average today is $3.98 per gallon. That's 5 cents less than a week ago, and 19 cents less than this year's highest daily price of $4.17 per gallon (August 16).

"Winter gasoline has moved into the market, enabling gas prices to move lower," said Molly Hart, spokeswoman for AAA - The Auto Club Group. "Unfortunately, the downward trend may end soon between getting past the hurricane season and its threats to Gulf Coast oil and gas production and refining, and futures prices have strengthened in the fuel market, which should reapply upward pressure on prices at the pump."

The U.S. price of oil gained significant strength through August and early September. The increase has mostly been driven by concerns that OPEC's decision to extend oil production cuts would further tighten global fuel supplies. U.S. oil prices closed at $87.51 per barrel on Friday. That's almost a 20% increase throughout the past two months. Gasoline futures have not increased as dramatically. After dropping 19 cents last week, gasoline futures regained about 6 cents per gallon - which could be an indication of where retail prices go in the coming week.



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Click here to view current gasoline price averages.

Ways to Save on Gasoline

  • Combine errands to limit driving time.
  • Shop around for the best gas prices in your community.
  • Pay with cash. Some retailers charge extra per gallon for customers who pay with a credit card.
  • Remove excess weight in your vehicle. Every 100 pounds taken out of the vehicle improves fuel economy by 1-2 percent.
  • Drive conservatively. Aggressive acceleration and speeding reduces fuel economy.

AAA Resources for Drivers

  • Enroll in savings programs. AAA Members who enroll in Shell's Fuel Rewards program can save 30 cents per gallon on their first fill-up and 5 cents per gallon each additional trip to the pump. Click here for more information.
  • Get a tune-up. Ensure your vehicle is properly maintained to optimize its fuel economy. Visit AAA.com/AutoRepair to find a certified repair shop.
  • Find the lowest gas prices in your area by using the free AAA mobile app.
  • Determine anticipated fuel costs for your trip by using the AAA's Gas Cost Calculator.

Drivers can find current gas prices using AAA.com/FuelFinder which allows consumers to compare gas prices at retailers by city or zip code.