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EFV-8 Club Forum / General Ford Discussion / ethanol

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Discussion Topic: ethanol

jerry_356

02-28-2025 @ 9:12 AM

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I've tried to search the forum for discussions that I'm sure have occurred to no avail.

I have a '33 Tudor in nearly stock condition. It does have an electric fuel pump which I'm considering converting back to mechanical. The question is whether or not ethanol blends should be used. I'm sure an ongoing debate has occurred over the years.

The question is - will the ethanol affect the various seals/gaskets in the fuel system?

juergen

02-28-2025 @ 11:04 AM

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When ethanol became available, the manufactures developed ethanol resistant fuel lines and gaskets. They didn't to save manufacturing money,

Drbrown

03-02-2025 @ 3:03 PM

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Yes, fuel system parts should utilize ethanol resistant parts. If you have replaced any of your fuel system parts (pump, carb, flex lines) or they have been rebuilt by competent persons, they would have installed ethanol resistant parts. Regarding your electric fuel pump, a modern day component ..... You don't say but I suspect it is in addition to an original mechanical pump mounted on the engine. I never heard of them being "converted" to mechanical operation. You could remove it but why ? Some of us keep our mechanical pumps and add an electric pump just ahead of the gas tank to facilitate priming of the carb before starting or for emergencies.

This message was edited by Drbrown on 3-2-25 @ 3:13 PM

40 Coupe

03-03-2025 @ 4:45 AM

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Ethanol fuel seems to go bad much quicker. It develops a lot of water in the tank while sitting. The use of a fuel additive to extend the life of the fuel is necessary unless you drive often.

alanwoodieman

03-05-2025 @ 4:55 PM

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I have cleaned out the residue created by ethanol gas in fuel pumps/carburetors--it will melt the diaprams--even the one supposedly for use in ethanol fuel. if non ethanol is not available use the higher octane fuels and add mmo to the tank

Robert/Texas

03-06-2025 @ 4:43 AM

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I'm 90 years old and I keep my old Fords in a barn 90 miles from my house so I don't drive them much anymore. My '34 and '37 Fords had their fuel umps and carburetors rebuilt by a well known respected vendor. The closest gas station that sells e-free gas is about 50 miles from both locations so it's inconvenient for me to get it there. I have used MMO for decades but that has not been enough to solve the water problem. About 2 years ago I started to add a half bottle of Heet brand additive at every gas stop and that has solved my problem completely.

03-06-2025 @ 8:35 AM

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What Robert/Texas said above. HEET is the answer! And, it's reasonably priced...
https://www.goldeagle.com/product/heet-gas-line-antifreeze-water-remover/

1934 Ford

03-18-2025 @ 8:03 AM

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I buy ethanol free gas for the extra 40 cents a gallon. I add Marine Stabil and buy 20 gallons a time in my big gas cans.
(When I'm going near where they sell it.) I have multiple old cars that need it.)
It costs twice as mush as the regular red Stabil but treats 4 times more gas and lasts twice as long, which is good for cars
that sit for long periods, like yours. It's served me well for years. I've also heard that Sea Breeze works well, but I have
not tried it.

1934 Ford's since 1972

nelsb01

03-18-2025 @ 10:07 AM

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What 1934 Ford said.

Yes marine stabilizer (I use Yamaha) is great.

Also, check https://www.pure-gas.org for locations as you travel.

52flatv8

03-18-2025 @ 1:20 PM

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Seafoam has worked well for me.

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