: designed to run on either traditional gasoline or a gasoline/alcohol blend (such as gasohol)
In the past few years, Brazil's bioethanol industry has sprouted new wings thanks to higher petrol prices and 'flex-fuel' cars, which can sense different mixtures of petrol and ethanol and adjust their workings accordingly. Emma Marris

Word History

First Known Use

1987, in the meaning defined above

Time Traveler
The first known use of flex-fuel was in 1987

Dictionary Entries Near flex-fuel

Cite this Entry

“Flex-fuel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flex-fuel. Accessed 30 Nov. 2022.

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