89 Octane Gas, No Ethanol?
some of you have mentioned that you have the option of buying straight gas(no ethanol) in 89 octane. how do you tell?
is there a label stating it? have you tested it? |
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-Jay |
Yeah, octane is irrelevant. If they are supposed to be selling a certain % of octane in a particular state or locality, it won't matter what the octane rating is. They use ethanol as an oxygenate to reduce emissions. Also labelling seems to vary state to state. A state that mandates for example 10% ethanol in all gasolines like Minnesota I believe, then it is moot point to label the pumps since they all should have it anyway.
I did read about a test using water to measure the ethanol content in gasoline and if you search about it you will find testers for aircraft. High ethanol content used in airplane engines can lead to problems and up in the sky is the last place you need it. |
depends on the station, typically the grade with ethonal in it is cheaper (tax break)
like most pumps around here the ethonal is in the regular 87 octane, now a few have it in the midgrade 89 octane BUT their 87 regular is higher than midgrade... thats a good way to tell. |
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I'd like to know about those ethanol tests if anyone digs out the details.
I am coming from the opposite direction though, I wanna know the ethanol content of the gas here, but I'm looking for the most ethanol I can get at the moment, I have some things to test that promise higher mileage on ethanol blend than on regular, even a whopping 50% on E85 in a non flexfuel vehicle if it works out right. |
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"if it was possible the manufacturers would do it" :rolleyes: :thumbdown:
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The biggest problem with flex fuel vehicles is they need de-tuned to run 86-91 octane when E85 is up around 110 octane. Kinda like wasting money on premium fuel in a car that runs fine on regular but to a more extreme extent. Guys running top-fuel dragsters even run pump E85 in some of their race cars. |
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all the stations i've seen locally JUST say "up to 10% ethanol." the higher the octane, the higher the price, so i guess i'm out of luck.
thank you all. |
regular is like $3.97 a gal while e85 is $2.99
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-Jay |
ya i think 20 cents cheaper is the break even point
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Break even point would be more easily figured and described as percent, should be about the same as the hit in mileage...
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In the St. Louis area, E85 is consitantly $.50 cheaper then Regular Unleaded.
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what you will find, is there will be varying answers to this. Its going to depend on state, and even locality. Here in NY, I do not believe I have seen a single station selling E85 at all. Also, I thought I had seen % of ethanol content on gas pumps here in the past but still lately have not seen one. I thought NY was also one of the states that required 10% in all gas but a search I did a few months back did not indicate NY mandated it.
I did find a test using a graduated cylinder and water to determine the % ethanol in pump gas. Apparently ethanol will come out of solution from the gasoline and mix with the water. The change in the water content of the content of the gas and water in the cylinder will tell you the % of E in the gas. |
i understand it could be different for each state, brand, or even batch.
what i'd like to find out is those that have the option of straight gas, how do you know? E10(or E0) is in question, not E85. |
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