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Author Topic: Hello I have a 10% ethanol question! Back to Topics
teaman91

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Omaha

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Message Posted: Apr 6, 2013 2:04:29 AM

I Live in Omaha NE and I was wondering because they have 87 and 89 and 89 has a sticker centered in the middle of it that says contains 10% ethanol and then they have premium 91. However, the only one that has the sticker next to it is the 89 which is the cheapest. And neither the 87 or 91 has this sticker do you think it is just for the 89 or for all of them I'm just curious?
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TSR6
Rookie Author Rockford

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Message Posted: May 22, 2013 4:38:11 PM

By me, Regular & Mid Grade often have ethanol. Premium usually does not. I also have a station that is ethanol free (and marked as such)
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PaylessKY
Champion Author Kentucky

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Message Posted: May 22, 2013 1:18:17 AM

This may mean all the fuels have ethanol. Most places 89 Midgrade is a mxture of 87 regular and 91 premium.
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forestghost07
Champion Author Miami

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Message Posted: May 21, 2013 11:11:15 PM

Miami as well, with a couple of exceptions - stations selling 90 octane eth-free marine gas (at a jacked price)
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WilW
Champion Author Atlanta

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Message Posted: May 21, 2013 7:23:31 PM

Here in Atlanta, ALL grades have 10% of that crap.
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thebrohta167
Champion Author New Jersey

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Message Posted: May 19, 2013 10:44:03 AM

ok
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teaman91
Rookie Author Omaha

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Message Posted: Apr 24, 2013 6:09:11 PM

hey thomasbuick if you find anything out let me know as I will do for you
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ThomasBuick01
Rookie Author Virginia Beach

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Message Posted: Apr 24, 2013 11:47:04 AM

GOOD QUESTION TEAMAN91. I've seen it like this too
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krzysiek_ck
Champion Author Illinois

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Message Posted: Apr 23, 2013 8:55:38 AM

"In internal combustion engines, water injection, also known as anti-detonant injection, is spraying water into the cylinder or incoming fuel-air mixture to cool the combustion chambers of the engine, allowing for greater compression ratios and largely eliminating the problem of engine knocking (detonation). This effectively reduces the air intake temperature in the combustion chamber, meaning that performance gains can be obtained when used in conjunction with a supercharger, turbocharger, altered spark ignition timing, and other modifications. The reduction of the air intake temperature allows for a more aggressive ignition timing to be employed, which increases the power output of the engine. Depending on the engine, improvements in power and fuel efficiency can also be obtained solely by injecting water. Water injection may also be used to reduce NOx or carbon monoxide emissions."

Water injection (engines)
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SoylentGrain
Champion Author Illinois

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Message Posted: Apr 22, 2013 5:45:24 PM

"If you want to bump the octane rating, why not just inject water, it's free, and you can meet the EPA requirement of 2 1/2 % oxygen in the fuel."

It doesn't work that way. Water is a product of oxidation. That means the oxygen has already burned something else up to produce the water. You would have to expend a boatload of energy to reduce the water back to hydrogen and oxygen.

Ethanol, on the other hand, contains a hydroxyl group, which has some oxidation potential. Not the same thing as water.

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borsht
Champion Author Oakland

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Message Posted: Apr 22, 2013 4:15:31 PM

If you want to bump the octane rating, why not just inject water, it's free, and you can meet the EPA requirement of 2 1/2 % oxygen in the fuel.
All our fighters in WW2 used water injection to raise the octane rating of the fuel to be compatible with the intake manifold pressures they were running.
Trucking or railroading ETHANOL to California from Kansas is a moronic way to add oxygen to our fuel.
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brerrabbitTX
Champion Author Houston

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Message Posted: Apr 10, 2013 10:46:46 AM

"if 87 and 89 are priced the same, Yes 89 contains ethanol"

Not really. If you take 87 octane clear gas (no ethanol) and blend in 10% ethanol then by default that is a cheaper blend than 100% 87 clear gas. The 10% ethanol costs less per gallon but adding the ethanol bumps the octane by 2 points. So in many stations in Nebraska, Kansas, Iowa, and South Dakota the price board at a station will list 89 w/ethanol for one price and 87 clear (no ethanol) for 10 cents a gallon more. If 10% of what you are selling is as much as 75 cents a gallon cheaper then by default the 89 should at a minimum cost 7.5 cents a gallon less.
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teaman91
Rookie Author Omaha

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Message Posted: Apr 9, 2013 6:40:32 PM

ethics101 you telling me to get a new car?
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ethics101
Rookie Author Chicago

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Message Posted: Apr 9, 2013 6:23:04 PM

GET A NEW CAR
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streetirsx
All-Star Author North Dakota

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Message Posted: Apr 8, 2013 10:44:43 PM

if 87 and 89 are priced the same, Yes 89 contains ethanol
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teaman91
Rookie Author Omaha

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Message Posted: Apr 8, 2013 9:19:38 PM

ya i wish they would go back to the old days too
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Mooseman1
Champion Author Manitoba

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Message Posted: Apr 8, 2013 12:56:10 PM

I wish the gas companies would just to back to gas only, no blends.
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brerrabbitTX
Champion Author Houston

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Message Posted: Apr 8, 2013 8:45:57 AM

89 is the only one that has ethanol in it. Most stations in Nebraska carry 89 with ethanol as the cheapest gas, with 87 clear as the next grade and it ususaly costs more and finally, the premium which can have ethanol or not.

Since this part of the world has been putting ethanol in their gas for the longest and did it volentarily they have developed their own way of marketing. The EPA only mandates the Kansas City area and requires ethanol blending in two counties there, otherwise you can use clear gas pretty much every where else in the region.
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giwan
Champion Author Michigan

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Message Posted: Apr 8, 2013 12:34:25 AM

just for that one
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teaman91
Rookie Author Omaha

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Message Posted: Apr 7, 2013 6:38:21 PM

ya im not sure does anyone else know anything
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SoylentGrain
Champion Author Illinois

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Message Posted: Apr 7, 2013 8:38:42 AM

It is highly likely only the 89 octane contains ethanol. Many of the flyover states don't have the strict EPA regulations that the larger metro areas have. This is common int he midwest states.

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