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Ethanol-Free Gas in Janesville, WI

5 verified ethanol-free gas stations

Janesville has 5 verified ethanol-free gas stations from 2 brands: Kwik Trip and Casey's. All 5 carry 87-octane E0. For 90-octane or higher E0, the closest option is KWIK TRIP #1750 in EVANSVILLE, Wisconsin, about 15 miles away. Every listing is independently verified; the most recent check in Janesville was August 13, 2026.

Ethanol-Free Gas in Janesville

Casey's

1542 Center Ave, Janesville, WI

6084535251

87
oct

The Station

2601 W Court St, Janesville, WI

608-756-4436

87
oct

Kwik Trip #1159

2810 E MILWAUKEE ST, Janesville, WI

(608) 754-8803

87
oct

Kwik Trip #1145

1100 N WRIGHT RD, Janesville, WI

(608) 563-6072

87
oct

Kwik Trip #1134

1919 HUMES RD, Janesville, WI

(608) 741-1340

87
oct
All Wisconsin Stations

Nearby Cities with Ethanol-Free Gas

Straight-line distance from Janesville.

Whitewater, WI

4 stations · 19 mi away

WISCONSIN DELLS, WI

3 stations · 75 mi away

DUBUQUE, IA

5 stations · 87 mi away

PRAIRIE DU CHIEN, WI

3 stations · 110 mi away

MONTICELLO, IA

3 stations · 116 mi away

Ethanol-Free Gas in Janesville: FAQ

Is there ethanol-free gas in Janesville, WI?

Yes. Janesville has 5 gas stations verified to sell ethanol-free (E0) gasoline: Kwik Trip (3 locations) and Casey's (2 locations).

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

Not currently. Stations in Janesville top out at 87-octane E0. The nearest station with 90-octane or higher is KWIK TRIP #1750 in EVANSVILLE, Wisconsin, about 15 miles away.

Which brands sell ethanol-free gas in Janesville?

Kwik Trip (3 locations) and Casey's (2 locations). All locations are independently verified through chain-website confirmation or direct source data; the most recent verification in Janesville was August 13, 2026.