Ethanol-Free Gas in Knoxville, IA

4 verified ethanol-free gas stations

Knoxville has 4 verified ethanol-free gas stations, all Casey's locations. All 4 carry 87-octane E0. For 90-octane or higher E0, the closest option is Maverik in Colfax, Iowa, about 27 miles away. Every listing is independently verified; the most recent check in Knoxville was May 5, 2026.

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Ethanol-Free Gas in Knoxville

Casey's

1007 N Lincoln St, Knoxville, IA

6418288404

oct

Casey's

1196 West Bell St, Knoxville, IA

6412432648

oct

Casey's

1201 E Main St, Knoxville, IA

6412550116

oct

Casey's

203 S Lincoln St, Knoxville, IA

6418422404

oct

All Iowa Stations

Nearby Cities with Ethanol-Free Gas

Straight-line distance from Knoxville.

Pella, IA

3 stations · 11 mi away

Chariton, IA

3 stations · 24 mi away

Indianola, IA

5 stations · 24 mi away

Oskaloosa, IA

5 stations · 24 mi away

Carlisle, IA

3 stations · 24 mi away

Ethanol-Free Gas in Knoxville: FAQ

Is there ethanol-free gas in Knoxville, IA?

Yes. Knoxville has 4 gas stations verified to sell ethanol-free (E0) gasoline: Casey's (4 locations).

Does Knoxville have 90-octane or higher ethanol-free gas?

Not currently. Stations in Knoxville top out at 87-octane E0. The nearest station with 90-octane or higher is Maverik in Colfax, Iowa, about 27 miles away.

Which brands sell ethanol-free gas in Knoxville?

Casey's (4 locations). All locations are independently verified through chain-website confirmation or direct source data; the most recent verification in Knoxville was May 5, 2026.