Ethanol Fuel
Thread Starter
Le Mans Master
Joined: Nov 2015
Posts: 7,397
Likes: 2,577
From: Really Central IL Illinois
Ethanol Fuel
I heard on the BBC news that Trump has relaxed the regulation of ethanol in gasoline to further cut the fuel from E10 to E15 to stretch the gasoline. This can be problematic to our old cars if using E10 or any gasoline at the pumps as they may need to be retuned for the increased alcohol if the refineries decide to go crazy with the corn liquor.
Also, your small engines may not like corn liquor.
Just a heads up.
Also, your small engines may not like corn liquor.
Just a heads up.
Race Director
Joined: Jan 2003
Posts: 17,643
Likes: 3,653
From: Central Arkansas
I haven’t seen that in the news and I would think it would be problematic for station owners and older car owners. But reinforces my decision to run 91 octane no-ethanol gas in my older cars. Ma y have to switch to it for my lawn equipment too.
Le Mans Master
Joined: Jan 2007
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From: Omaha NE
2025 c3 ('74-'82) of the Year Finalist - Unmodified
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The House passed a bill yesterday that allows E15 to be sold year round but it still needs to be passed by the Senate before Trump signs it.
That's all it is...
That's all it is...
Melting Slicks
Joined: Dec 2017
Posts: 3,415
Likes: 533
From: 67401
I feel fortunate that we have ONE gas station in town that brings in 91 octane ($4.50/gal as of 5/14/26) with no ethanol for us classic car guys. I've been able to tune my 67 so it runs well on the 91 octane with no ethanol without any pre-detonation. Hopefully we can continue to buy it for a long time.
Thread Starter
Le Mans Master
Joined: Nov 2015
Posts: 7,397
Likes: 2,577
From: Really Central IL Illinois
87 octane 10% ethanol was $4.999 and rising here in the central Illinois prison for tax payers. Pritzker's mafia passed a bill to raise the tax $.50/gal on July 1. They want to profit off of America's 250th anniversary.
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Drifting
Joined: Oct 1999
Posts: 1,668
Likes: 486
From: Corrales NM
Sad to hear about year round E15. Ethanol fuels have dubious benefits but politics and money will ensure it never goes away. I am fortunate there is 91 non ethanol available where I live though it is at only a single station. Paid $5.09/gal today.
Melting Slicks
Joined: May 2004
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From: Willowbrook IL
St. Jude Donor '13-'14-'15-'16
I've been using E10, 93 octane in my 1967 L79 Vette since I purchased it in 1985 and I immediately rebuilt the carb doe to faulty gaskets. Since then in 2024 I replaced the gaskets again and the crossover tube's o-rings. There has never been any pinging or anything deleterious on any internal parts. If the inclusion of up to 10% ethanol is so damning, after 40 plus years I would have seen it and I have not.
Don
Don
Last edited by vetsvette2002; Today at 02:15 PM.
Race Director
Joined: Feb 2007
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From: northern california
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I've been using E10, 93 octane in my 1967 L79 Vette since I purchased it in 1985 and I immediately rebuilt the carb doe to faulty gaskets. Since then in 2024 I replaced the gaskets again and the crossover tube's o-rings. There has never been any pinging or anything deleterious on any internal parts. If the inclusion of up to 10% ethanol is so damning, after 40 plus years I would have seen it and I have not.
Don
Don
While I'm no fan of E10, E15 or E<anythijng>, the fact remains that the sky is not falling.
Out of necessity here in the People's Republik, I use E10 in all my rolling stock, even in my fuelies. It burns. The vehicles move under their own power.
The only condemnation I can muster is that the fuel consumption is greater than with real gasoline.
Le Mans Master
Joined: Feb 2014
Posts: 8,855
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From: Richardson Texas
I don't know if this makes a difference to you or anyone else but I thought I would share:
Murphy USA gas is not certified Top Tier. While their fuel meets EPA standards, contains detergents, and is frequently used, it does not appear on the official Top Tier list. It is generally considered a budget, non-branded fuel, whereas Top Tier brands are certified to have higher detergent levels for engine cleanliness.
