What does Flex fuel mean

Asked by Jul 06, 2019 at 05:08 PM about the 2019 Ford F-350 Super Duty

Question type: General

1 Answer

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It means that you can burn standard E10 as well as E85 fuels. However you will notice a big drop in power and mileage when running E85. My neighbor has a Flex Fuel vehicle and he ran one tank of E85 in it and said never again I'm sticking with E10.

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