10% Ethanol Blend
Thread Starter
Racer
Joined: Sep 2006
Posts: 289
Likes: 1
From: Valley Springs SD
10% Ethanol Blend
I live in the midwest and we have a 10% Ethanol blend fuel (Not E85) has anyone ran that fuel or does everyone run the Premium fuels. Regular gas is 87 octane rating and the ethanol blend is 89 octane. Is there any problems with running a ethanol blend or should I stick with premium?
Heel & Toe
Joined: Jan 2006
Posts: 23
Likes: 0
From: Benson Mn
10% ethanol
Here in Minnesota thats about all you can buy is Ethanol and I have not had any trouble with it in my 1976, however if you have not run it in your car before you might want to change your fuel filter after a few tank fulls.
Burning Brakes
Joined: Jan 2006
Posts: 957
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From: Burlington wisconsin
Melting Slicks
Joined: Mar 2006
Posts: 3,456
Likes: 102
From: Piedmont Va
St. Jude Donor '11-'12-'13,'19-'20
My understanding is all pump gas nationwide will be 10% ethanol soon as the energy bill of 06 mandated phasing out MTBE, which is the incumbent alternative. I run 89 octane E10 in my 73 with no issues. Runs great! 04 Avalanche runs great on it as well. MTBE is some real nasty shiat so i'm glad they are making the change.
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Race Director
Joined: Nov 1999
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From: Foxfield CO 1970 Convertible
Racer
Joined: Apr 2004
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From: Hartland WI
Burning Brakes
Joined: May 2005
Posts: 826
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From: Pearl MS
Ethanol in the gas does lower the mpg - the amount of decrease depends upon the amount of ethanol.
The only thing you need to be careful of when running ethanol containing fuels is anything plastic or rubber - the ethanol desolves the oil (for lack of a better phrase) and esentially hardens those components causing them to crack and become brittle and hard. Therefore when it goes through rubber fuel lines or is around the plastic / rubber parts on the injectors - they will fail earlier unless they were made to be used with ethanol.
And I try to run straight gas - no ethanol
The only thing you need to be careful of when running ethanol containing fuels is anything plastic or rubber - the ethanol desolves the oil (for lack of a better phrase) and esentially hardens those components causing them to crack and become brittle and hard. Therefore when it goes through rubber fuel lines or is around the plastic / rubber parts on the injectors - they will fail earlier unless they were made to be used with ethanol.
And I try to run straight gas - no ethanol
Race Director
Joined: Sep 1999
Posts: 11,360
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From: Plano TX
All rubber fuel lines, o-rings etc have been E85 compatible since the mid 80's. Unless you're still running the factory original hoses you won't have a problem. Actually, if you're running 25+ year old hoses you need to replace them regardless of what you put in the tank!
All gas is E10 here in Dallas for a year now. So far I've had no issues.
All gas is E10 here in Dallas for a year now. So far I've had no issues.
Melting Slicks
Joined: Apr 2002
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From: Minnesota in the summer, Las Vegas in the winter
Race Director
Joined: Apr 1999
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From: NM
