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Fuels and Alternative Fuels Materials or substances that can be used as a fuel, waste oils, vegetable oils or animal fats, which can be used alone, or blended with fossil fuels.

Fuels and Alternative Fuels

E15 Ethanol


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  #1  
Old 01-05-2013, 12:46:54 PM
Bill Sherlock Bill Sherlock is online now
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Default E15 Ethanol

Word recently has been spreading into large mainstream outlets like USA Today (Gannett) and Fox News about AAA coming out and advising drivers specially NOT to use the E15 fuel that is approved for sale by the government.

Not only that, but we're now hearing that virtually all of the major auto makers like Ford and Honda are now telling drivers that if they use E15, their warranties are voided.

Only 5% of vehicles are approved for E15. Ten major auto makers are telling the public they're out of luck if they use E15 and have problems. And now AAA is telling everyone flat-out "don't use it".

Above is an excerpt from an email received today and thought I'd share it. I avoid buying ethanol gas anytime possible.

Bill
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Old 01-05-2013, 12:56:14 PM
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Billy J Shafer Billy J Shafer is offline
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Default Re: E15 Ethanol

I don't care what the experts say. Ethanol blend is a problem. Had a customer from Dallas down here for the weekend. Ran out of ethanol free gas for his chain saw. That he buys in Dallas. So he bought the local gas to finish off his work. A week later chain saw won't start. Now I have it, putting on new fuel lines and cleaning the carb.
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Old 01-05-2013, 01:37:24 PM
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Default Re: E15 Ethanol

Lucky carb is still serviceable.
Sits for a while- "white rust".
In this area, 10% ethanol is the only gas available. I have been folowing a post from about a year ago about running ATF in fuel system when done. No problems since doing that.
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Old 01-05-2013, 01:55:20 PM
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OTTO-Sawyer OTTO-Sawyer is offline
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Default Re: E15 Ethanol

Having run E25 for most of a year 6-7 years ago along with the occasional partial tank of E85 mixed in with it with no problems, I'm not too worried about E15..... At least not locally. The only reason I quit running the E25 was because I was buying it at a station that was 'pay in advance' with credit card, and I no longer have a credit card.

If I ever go on a road trip and travel into areas where a lot of people report problems (real or imaginary), then I might avoid it there just to avoid the chance of it actually being a regional problem.

My Vehicles, in My Area..... have Never had a problem with Ethanol. That includes my daily drivers, my antique cars and trucks, my tractors, my lawn mowers, and my hit & miss engines. The ONLY fuel related problem I have had was with my Poulan chain saw fuel line rotting away in 10 or 12 years, but I still don't know if it was because of the Ethanol or if it would have done the same thing with regular fuel in that amount of time being a small flimsy plastic tube.

But, as they say.... Your Milage May Vary. If you're afraid of using it, then don't.

Myself, I'm not going to worry about it.
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Old 01-05-2013, 04:16:49 PM
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Default Re: E15 Ethanol

Engines that run perfectly fine on E10 are not going to magically blow up when you put E15 in it. I have run ethanol in cars for 30 years now with no engine problems and would not hesitate to put E15 in anything I own, even if it is not approved for it.

There are only a couple E15 pumps in the country, if you don't count blender pumps that have been around for several years. It is not "legal" to put E15 in older cars, so I would guess that if go to a station with E15, there will be a E10 or E0 pump right next to it. If you don't want to use E15, then don't, and quit complaining about it.

I will have to find the link again, but at least one study showed that some cars get the best mileage with 20 or 25% ethanol.
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Old 01-05-2013, 11:22:07 PM
C-Wade7 C-Wade7 is offline
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Default Re: E15 Ethanol

It can cause hardstart and long crank on electronic fuel controlled cars as well as lean conditions depending on how it runs. Over 10% long fuel trim will set a p0171/174 lean code and on a car that is already at 7-8% the additional ethanol can and will push it over the edge. New cars are designed to run as lean as possible. In a carb car it is already so rich I don't know you would notice. As a mechanic I can tell you since they started with e-10 we have seen the number of crank no stat due to fuel pump failure probably triple. The electrical windings are fine the pump seizes. In a drive ability condition ford has pull fuel samples and check ethanol content by adding measured amounts of water to check adsorption, and over 10% is not acceptable.
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Old 01-05-2013, 11:41:48 PM
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Default Re: E15 Ethanol

Yes, excessive ethanol will throw a code. In my experimentation with my 2003 S10, I don't get a lean code until I put more than 50% ethanol in it. It still runs just fine.
You are correct that a lot of the carbureted engines were excessively rich, which means that when you add ethanol they can and do run better and get better mileage.
That is the first I have heard about fuel pump failures. I have never had a in-tank fuel pump failure and I have had 5 vehicles each accumulate more than 200,000 miles with every drop of fuel being at least E10. I think the secret is to not run your cars out of gas which overheats the fuel pumps.
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Old 01-06-2013, 06:39:36 PM
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Default Re: E15 Ethanol

Quote:
Originally Posted by C-Wade7 View Post
It can cause hardstart and long crank on electronic fuel controlled cars as well as lean conditions depending on how it runs. Over 10% long fuel trim will set a p0171/174 lean code and on a car that is already at 7-8% the additional ethanol can and will push it over the edge. New cars are designed to run as lean as possible. In a carb car it is already so rich I don't know you would notice. As a mechanic I can tell you since they started with e-10 we have seen the number of crank no stat due to fuel pump failure probably triple. The electrical windings are fine the pump seizes. In a drive ability condition ford has pull fuel samples and check ethanol content by adding measured amounts of water to check adsorption, and over 10% is not acceptable.
C-Wade7
Do you believe running a car low on gas will overheat a fuel pump and cause early failure? Is this a real possibility or just an old tale? Jim
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Old 09-25-2016, 11:10:37 PM
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Default Re: E15 Ethanol

I've tried up to E30 in my Jeep Cherokee, mileage dropped a bit but low and mid-range torque improved noticeably.
I'd like to know if the ECU advances the timing at all running a higher octane fuel, I could make up some or all of that mileage.
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Old 09-26-2016, 06:54:19 AM
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Default Re: E15 Ethanol

Some do. They will advance the timing up to a point, then back it off until the knock sensor quits. They will also richen the mixture up based on what the oxygen sensor sees, up to the limit of the injector. I get a check engine light after about E40, because of lean fuel mixture. I see no loss of mileage up to about E20 or so.
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