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rotorwrench · 12-04-2019, 09:52 AM

E85 high ethanol fuel reduces the mileage since it has to burn more to get the same power output. Flex fuel computer controlled vehicles can run the ethanol or straight gasoline. On the carbureted engines, the jets would have to be changed to run high ethanol fuel effectively.

E85 isn't the same as 85 octane so folks have to be specific about which they are referring to. 85 octane gas is usually only found in mountainous states with higher altitudes to deal with. It's not available where I live.

12-04-2019, 09:52 AM	#9
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,425	Re: Using 85 octane fuel E85 high ethanol fuel reduces the mileage since it has to burn more to get the same power output. Flex fuel computer controlled vehicles can run the ethanol or straight gasoline. On the carbureted engines, the jets would have to be changed to run high ethanol fuel effectively. E85 isn't the same as 85 octane so folks have to be specific about which they are referring to. 85 octane gas is usually only found in mountainous states with higher altitudes to deal with. It's not available where I live.