Ethanol-Free Gas in Marshalltown, IA

5 verified ethanol-free gas stations

Marshalltown has 5 verified ethanol-free gas stations, all Casey's locations. All 5 carry 87-octane E0. For 90-octane or higher E0, the closest option is Maverik in Grinnell, Iowa, about 22 miles away. Every listing is independently verified; the most recent check in Marshalltown was May 5, 2026.

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Ethanol-Free Gas in Marshalltown

Casey's

1009 W Lincoln Way, Marshalltown, IA

641-255-0260

oct

Casey's

108 Iowa Ave W, Marshalltown, IA

641-255-0250

oct

Casey's

111 N 3rd Ave, Marshalltown, IA

641-255-0256

oct

Casey's

1402 S 12th Ave, Marshalltown, IA

641-255-0262

oct

Casey's

916 E. Main St, Marshalltown, IA

641-753-4046

oct

All Iowa Stations

Nearby Cities with Ethanol-Free Gas

Straight-line distance from Marshalltown.

Grinnell, IA

5 stations · 23 mi away

Newton, IA

4 stations · 25 mi away

Huxley, IA

3 stations · 36 mi away

Ames, IA

11 stations · 37 mi away

Bondurant, IA

3 stations · 37 mi away

Ethanol-Free Gas in Marshalltown: FAQ

Is there ethanol-free gas in Marshalltown, IA?

Yes. Marshalltown has 5 gas stations verified to sell ethanol-free (E0) gasoline: Casey's (5 locations).

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

Not currently. Stations in Marshalltown top out at 87-octane E0. The nearest station with 90-octane or higher is Maverik in Grinnell, Iowa, about 22 miles away.

Which brands sell ethanol-free gas in Marshalltown?

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