Find E85 flex fuel stations throughout Illinois. Use the interactive map below to locate stations near you.
Excellent E85 coverage! Stations are widely available throughout the state.
Explore verified station listings, retailer details, and pricing context for the busiest E85 markets in Illinois.
Illinois ranks among the nation's E85 leaders with 314 public stations spanning from Chicago's suburbs to downstate farming communities. As the third-largest ethanol producing state, Illinois offers flex fuel drivers excellent infrastructure.
Illinois's 13 ethanol plants produce approximately 1.87 billion gallons annually, making Illinois the third-largest producer nationally after Iowa and Nebraska. ADM maintains its global headquarters in Chicago and North American operations in Decatur.
Key facilities include Marquis Energy in Hennepin (395+ MGY—the world's largest dry-grind ethanol facility), ADM Decatur (300+ MGY), ADM Peoria (250+ MGY), and One Earth Energy in Gibson City (130 MGY).
Illinois exempts E85 (51–83% ethanol) from the 6.25% state sales and use tax through December 31, 2028—a meaningful pump-price reduction. The state's consumer-facing Alternate Fuels Rebate Program (the $450/year check widely cited in older articles) has been suspended since 2016 and is not currently accepting applications, so it should not be counted in break-even math. Illinois does require state-funded gasoline vehicles to be flex-fuel or efficient hybrid capable.
The Chicago metropolitan area provides strong coverage through Thorntons locations throughout the suburbs. Downstate coverage centers on Springfield, Peoria, Champaign-Urbana, Bloomington-Normal, and Decatur. Casey's General Stores operates 410+ Illinois locations.
Major interstate corridors are well-served: I-55, I-57, I-70, I-80, I-88, I-90, and I-94 all offer E85 access at regular intervals.
E85 typically sells $0.70-$1.00+ cheaper per gallon than regular gasoline. Prices near ethanol plants—Decatur, Pekin, Hennepin—often offer the best deals.
Chicago-area drivers should explore Thorntons locations for convenient suburban access. Casey's is the lifeline for rural downstate coverage. For best value, seek high-volume stations near ethanol production centers. Note that winter blends drop to approximately 70% ethanol content for cold-weather starting.
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No. The Illinois Alternate Fuels Rebate Program, which historically paid E85 drivers up to $450 per year, has been suspended since 2016 and has received no new appropriations — it is listed among expired laws on the AFDC database. Current state incentives focus on electric vehicles through the CEJA EV Rebate Program rather than on flex fuel.
No. Under Public Act 102-700, E85 (51–83% ethanol) is exempt from the Illinois state sales and use tax through December 31, 2028. E15 receives a 10% exemption, and mid-range blends (E20–E50) a 20% exemption. After that date, all ethanol blends return to full sales-tax treatment — a meaningful future change FFV owners should watch.
Only very briefly. The Section 30C Alternative Fuel Vehicle Refueling Property Credit — worth up to $1,000 per item for individuals and up to $100,000 per item for businesses in eligible low-income or non-urban census tracts — was shortened by the One Big Beautiful Bill Act (P.L. 119-21, July 2025). Qualifying property must now be placed in service by June 30, 2026, instead of the prior 2032 expiration. Many secondary sources still show the 2032 date; the IRS and AFDC are the authoritative references.
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