Ethanol-Free Gas in Sioux Falls, SD
15 verified ethanol-free gas stations
Sioux Falls has 15 verified ethanol-free gas stations, all Casey's locations. All 15 carry 87-octane E0. For 90-octane or higher E0, the closest option is Maverik in Elk Point, South Dakota, about 60 miles away. Every listing is independently verified; the most recent check in Sioux Falls was May 5, 2026.
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Ethanol-Free Gas in Sioux Falls: FAQ
Is there ethanol-free gas in Sioux Falls, SD?
Yes. Sioux Falls has 15 gas stations verified to sell ethanol-free (E0) gasoline: Casey's (15 locations).
Does Sioux Falls have 90-octane or higher ethanol-free gas?
Not currently. Stations in Sioux Falls top out at 87-octane E0. The nearest station with 90-octane or higher is Maverik in Elk Point, South Dakota, about 60 miles away.
Which brands sell ethanol-free gas in Sioux Falls?
Casey's (15 locations). All locations are independently verified through chain-website confirmation or direct source data; the most recent verification in Sioux Falls was May 5, 2026.