E85 (Flex Fuel) - Alternative Fuels Data Center - Department of Energy

Use their interactive map to filter by location, zip code, or even along a specific route.

The GasBuddy app and Waze are highly effective for real-time crowd-sourced data on which local stations currently have E85 and at what price.

While E85 is often cheaper per gallon than regular gasoline (sometimes by 15-50%), it contains less energy. This typically results in a 25-30% drop in MPG , so it's best to compare the price gap to see if you're actually saving money.

Sites like eFlexFuel provide guides and maps specifically tailored for flex-fuel vehicle (FFV) owners. What to Know Before You Fill Up

E85 has a much higher octane rating (typically 100+) than premium 93 gasoline. This makes it a popular choice for high-performance engines because it burns cooler and is more resistant to "knock".