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Old 06-18-2006, 09:29 PM   #21
zixx6r
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I'm not a fan of ethanol. they're doing it for the emissions and that's a good thing but there are some problems associated with it. we burn a lot of campeche mexican high-sulpher crude in houston, which is why our air quality is so terrible...and ethanol helps a little in this regard. the problem is, you get less MPG, ethanol costs more and it isnt exactly fully miscible in gasoline (doesnt mix well) so there can be separation.
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Old 06-18-2006, 09:29 PM   #22
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well whats all this donkey im finding in gas tanks, and the many stories of it seperating from gas I keep hearing
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Old 06-18-2006, 09:31 PM   #23
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There are quite a few Krogers that have e85 if you are interested in getting some.
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Old 06-18-2006, 09:32 PM   #24
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Quote:
Originally Posted by rickykline
its a cleaner burning fuel.. it doesnt produce as much carbon build up as gas
Carbon build up in engines or carbon released into the air?
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Old 06-18-2006, 09:36 PM   #25
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seperation might happen over time if you allow a tank to sit for some time without the vehicle being moved... but that will happen with race gas too.. just with race gas you have to worry about the acohol absorbing the moisture and rusting your tank...
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Old 06-18-2006, 09:42 PM   #26
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you will see a slight decrease in fuel economy with ethanol.. but running a 10% mix at most you wont see that much of a change just a few miles per gallon... but it is cheaper... if we didnt have the E10% gas prices would go to $3 a gallon for reg..
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Old 06-18-2006, 09:57 PM   #27
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Quote:
Originally Posted by rickykline
if we didnt have the E10% gas prices would go to $3 a gallon for reg..
It is already getting there....the anticipation of the latest storm caused it to go up in case you didn't notice.

As for the e10 issue, here are some details from the Chevron website.
"Ethanol blends are hygroscopic (absorb moister from the air) and in time can phase separate during storage if the tank is vented to the atmosphere and is subject to breathing as a result of temperature changes."

What this means is that it is a bad choice for Houston due to the high humidity we have. Also, the e10 only separates if it is subject to water. The newer stations shouldn't cause a problem and letting the tanks sit for 30 minutes really the correct thing to do. The ethanol is mixed as it is pumped into the trucks to avoid the exposure to water. So the longer it sits, the better chance you have of separating the gas from it. If you keep your gas cap in good order on your car, you shouldn't have an issue. Now for bikes, they don't seal well at all cause they need to vent. If they didn't vent, the tanks would bend on suction or when they sit and have sun beating on them. So if you plan on letting your bike sit over the weekend or what not, you might want to get some fuel octane booster. Once the gas separates from the e10, you get left with a low octane gas and a water/e10 mixture that will not burn. The low octane gas will cause harm to your bike since the compression is much higher than an average car.
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Old 06-18-2006, 10:05 PM   #28
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thats ****ign great to know. seperation in just a matter of a weekend.
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Old 06-18-2006, 10:08 PM   #29
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is there any information on how long it takes to seperate? I think a weekend would be pretty quick considering a lot of people have multiple cars they don't drive every day or even every other day (I'm one of those people). So if this is true it would be cause for alarm for potentially thousands and thousands of people.
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Old 06-18-2006, 10:10 PM   #30
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if you shake the bike around, can that undo any seperation?
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Old 06-18-2006, 10:13 PM   #31
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not a problem here better yet let me re-state that never have never will..
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Old 06-18-2006, 10:36 PM   #32
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if it evaporates quicker. its more combustable too more combustable= more power
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Old 06-18-2006, 10:38 PM   #33
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if it evaporates quicker. its more combustable too more combustable= more power right
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Old 06-18-2006, 11:26 PM   #34
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Quote:
if it evaporates quicker. its more combustable too more combustable= more power right

Not neccessarily so.
In reality ethanol produces less power per gallon than standard gasoline with MTBE.
MTBE was originally added to gas back in the late '70s to increase the octane / power output of unleaded gas.
The EPA, under Clinton I might add, determined that MTBE can contaminate ground water supplies and it was determined to be phased out in favor of ethanol.
Ethanol makes less power per gallon, hence lower fuel mileage / decreased performance. Ethanol also is a water "attractant" so it actually abosorbs water from tanks, moisture from the air, etc.
The only possible positive to ethanol is that only after enough refineries have the ability to process it, ethanol will slightly reduce our dependence on foriegn oil.
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Old 06-19-2006, 11:54 PM   #35
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Quote:
Originally Posted by Patrick
Not neccessarily so.
In reality ethanol produces less power per gallon than standard gasoline with MTBE.
MTBE was originally added to gas back in the late '70s to increase the octane / power output of unleaded gas.
The EPA, under Clinton I might add, determined that MTBE can contaminate ground water supplies and it was determined to be phased out in favor of ethanol.
Ethanol makes less power per gallon, hence lower fuel mileage / decreased performance. Ethanol also is a water "attractant" so it actually abosorbs water from tanks, moisture from the air, etc.
The only possible positive to ethanol is that only after enough refineries have the ability to process it, ethanol will slightly reduce our dependence on foriegn oil.





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Old 06-19-2006, 11:56 PM   #36
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Quote:
Originally Posted by bdmpastx
It is already getting there....the anticipation of the latest storm caused it to go up in case you didn't notice.

As for the e10 issue, here are some details from the Chevron website.
"Ethanol blends are hygroscopic (absorb moister from the air) and in time can phase separate during storage if the tank is vented to the atmosphere and is subject to breathing as a result of temperature changes."

What this means is that it is a bad choice for Houston due to the high humidity we have. Also, the e10 only separates if it is subject to water. The newer stations shouldn't cause a problem and letting the tanks sit for 30 minutes really the correct thing to do. The ethanol is mixed as it is pumped into the trucks to avoid the exposure to water. So the longer it sits, the better chance you have of separating the gas from it. If you keep your gas cap in good order on your car, you shouldn't have an issue. Now for bikes, they don't seal well at all cause they need to vent. If they didn't vent, the tanks would bend on suction or when they sit and have sun beating on them. So if you plan on letting your bike sit over the weekend or what not, you might want to get some fuel octane booster. Once the gas separates from the e10, you get left with a low octane gas and a water/e10 mixture that will not burn. The low octane gas will cause harm to your bike since the compression is much higher than an average car.


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