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for Phillips 66® E85.

Frequently Asked Questions

Phillips 66® E85, also called flex fuel, is a blend of ethanol and gasoline designed for use only in flex-fuel vehicles. Ethanol is made from renewable resources generally derived from crops like corn and sugar cane. For any flex-fuel vehicle, this product can be considered a “drop-in” fuel (no engine modifications necessary).

Phillips 66® E85 fuel provides a reduction in some tailpipe emissions. For some flex-fuel vehicles, users may notice improvement in engine performance and power compared to gasoline.

Check your gas cap, fuel door or owner’s manual. Many flex-fuel vehicles have a distinct yellow gas cap, a sticker inside the fuel door, or a badge on the exterior that says “FFV” or “Flex Fuel.” Phillips 66® E85 is only intended for use in vehicles identified by the manufacturer as a flex-fuel vehicle.

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Phillips 66® E85 has a higher octane rating than premium gasoline. Higher octane allows for better engine performance and a smoother running engine.

Ethanol accounts for at least 80% of the final product.

*Compared to gasoline

Save up to 25¢* per gallon when you buy gas with the My Phillips 66® App.

The My Phillips 66® App is safe and secure. And for a limited time, you can save up to 10¢* per gallon when you buy gas with the My Phillips 66® App. Then save another 15¢* per gallon when you use Direct Pay or the Phillips 66® credit card in the My Phillips 66® App. Download today, setup your mobile wallet and spend less to get where you're going. Offer ends 12/31/22.

*25¢ is a combined savings of 10¢ off per gallon (up to 30 gallons) at the pump at participating Phillips 66® locations AND 15¢ off per gallon when you pay for gas using your select payment methods within the My Phillips 66® App. Offer valid through 12/31/22. Phillips 66® is a registered trademark owned by Phillips 66® Company.