I see some questions have been answered about the fuel my question is as we have a gas station who sells ethanol free 85 octane gas is that safe to run in my Flex Fuel vehicle

Asked by Guru9C6DT Jun 26, 2017 at 06:02 AM about the 2010 Ford F-150 FX4 SuperCab 4WD

Question type: General

1 Answer

74,280

Yes. You'll get slightly better gas mileage, maybe a half a mile per gallon. If they have 83 octane you can use that. The down side is the difference in price. In my area ethanol free is about 40 cent a gallon more. Try to stay away from any gasoline with more than 10 percent ethanol. Your gas mileage will suffer. People who use e 85 have their gas mileage cut by about 60 percent.

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