Can I Use E85 in My Car? How to Tell If Your Vehicle is Flex Fuel
Learn 5 ways to identify if your vehicle is flex fuel compatible. Check for yellow gas caps, FFV badges, and use your VIN to verify E85 compatibility before filling up.
Find E85 flex fuel stations throughout Montana. Use the interactive map below to locate stations near you.
E85 availability is limited. Plan ahead and use the route planner for road trips.
Montana presents the starkest E85 challenge in America: the 4th largest state by area served by just 1 public E85 station. For practical purposes, flex fuel vehicle owners in Montana cannot rely on E85.
Montana spans 559 miles east-to-west yet ranks just 44th in population with 1.1 million residents. This makes E85 infrastructure economically unviable. Distance from the nearest major ethanol plants in Nebraska and South Dakota is 400-600+ miles. Montana winters regularly drop below -15°F, where E85's cold-start difficulties become problematic.
Montana provides producer tax incentives ($0.20/gallon for in-state ethanol production), but nothing for retail stations or consumers. Policy focus has shifted to EV infrastructure.
The Department of Energy's Alternative Fuels Data Center lists 1 public E85 station in Montana, though multiple locator sites report zero. Three additional private stations serve government/fleet use only. Call ahead before relying on any Montana E85 station.
I-90 (Billings to Idaho), I-94 (Montana to North Dakota), and I-15 (Canada to Idaho) all have zero E85 stations in Montana. Driving Billings to Missoula is 343 miles without E85.
Do not plan to use E85 in Montana. Your flex fuel vehicle runs perfectly well on regular gasoline—use that capability. If entering Montana from North Dakota, fill with E85 in Williston or Dickinson before crossing the border. North Dakota offers the best nearby options with 39 E85 stations.
Learn 5 ways to identify if your vehicle is flex fuel compatible. Check for yellow gas caps, FFV badges, and use your VIN to verify E85 compatibility before filling up.
Find out if you can safely mix E85 and regular gasoline in your flex fuel vehicle, what happens if you accidentally use E85, and how FFVs handle mixed fuels.
E85 is an ethanol-heavy fuel blend (51-83% ethanol) for flex fuel vehicles. Learn what E85 is, how it differs from regular gas, benefits, drawbacks, and if it's right for your car.
E85 pricing in Montana typically runs below regular gasoline, though actual discount depends on proximity to ethanol producers and retailer. Factor in E85's roughly 25–27% lower fuel economy when calculating your cost per mile.
Only factory-certified flex fuel vehicles (FFVs) should run E85. Check your Montana vehicle for a yellow fuel cap, a "Flex Fuel" badge, an E85 sticker inside the fuel door, or confirm via the owner's manual or VIN decoder. Using E85 in a non-FFV can damage fuel lines, injectors, and seals — see our full FFV identification guide.
The Department of Energy's Alternative Fuels Data Center lists 1 public E85 station in Montana, though multiple locator sites report zero. Three additional private stations serve government/fleet use only. Call ahead before relying on any Montana E85 station. For live station data, scroll up to the interactive map or plan a route through Montana.
Find E85 stations along your travel route. Perfect for road trips and long-distance travel.
Open Route Planner →View E85 station availability across all 50 states and Washington D.C.
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