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08-05-2010, 02:27 PM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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An easy way to rid mogas of ethanol..
A local friend of mine has old hotrods...55 Chevy, crotch rocket Kawasaki and he won't run mogas with ethanol.
He takes a modified 55 gallon drum to the gas station with 5 gallons of water in it and then buys 40 gallons of mogas. The water attracts the alcohol, just like in the test and becomes 9 gallons of water/alcohol mix (10% alcohol is 4 gallons, plus the 5 gallons of water).
He added a drain valve that lets the water/alchy mix out until he sees/smells gas...pretty simple really.
Best,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
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08-05-2010, 02:33 PM
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Join Date: May 2008
Location: central oregon
Posts: 1,089
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and then the remaining fuel is of a much lower grade than originally, right? Does he put any of that fuel in high compression engines?
__________________
nothing special here...
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08-05-2010, 02:47 PM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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How do you figure that?
Ethanol laced gas has less power than non-alcohol IIRC,
Best,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
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08-05-2010, 02:54 PM
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Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,435
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Ethanol has less energy content than gasoline, as you suggested, but acts as an octane booster, I understand. So removing it would tend to lower the octane of the remaining gasoline.
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08-05-2010, 03:02 PM
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Join Date: Feb 2005
Location: Victoria B.C.
Posts: 1,266
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I suppose that what he drains off is served straight up on the rocks.
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08-05-2010, 03:06 PM
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Join Date: May 2008
Location: central oregon
Posts: 1,089
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i believe it is like david said. here is a quote that somewhat shows the numbers underlying the problem with trying to remove ethanol at home
"# It is obvious that there is an economic incentive for terminals to blend ethanol, the direct tax credit. But there is another more subtle and insidious incentive for refineries to get all of their distributors to blend E10. Once that happens they can ship "suboctane" gasoline to the terminals. Since blending ethanol at 10% or higher raises the Anti Knock Index (AKI) by more than 3 points, refineries can produce and ship 84 AKI gasoline for regular unleaded E10 blending. This is already happening in Oregon. They can also ship 89 AKI gasoline for premium unleaded blending. Suboctane gasoline costs less to produce and more product results from every barrel of oil.
# The most acute problem for aviation is that if the premium unleaded is taken suboctane, when all gasoline is E10, there will be no 91+ AKI unleaded gasoline made, which is required for 100 HP Rotax LSA engines and Petersen high compression STCs."
from the e0pc.com web page talking points
__________________
nothing special here...
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08-05-2010, 03:24 PM
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Join Date: Jun 2005
Posts: 3,275
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What does he do with the nine gallons of water/ethanol?
Just say no to the ethanol scam.
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08-05-2010, 06:01 PM
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Join Date: Aug 2008
Location: Sandy Valley,Nevada 3L2
Posts: 151
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Oregon etonol free
It seems the Peoples Republic of Oregon has seen fit to sell ethanol free high octane gas at the pump. My recollection is that ethanol is added at the distribution site. If one can get to these locations can we purchase ethanol free gas? I seem to recall there is an airport at El Paso that sells mogas ethanol free as they buy from a local refinery.
__________________
RV6A, RV7, RV6 Wing
Living with my 6A at 3L2 near Las Vegas
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08-05-2010, 06:07 PM
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Join Date: Dec 2006
Location: Kalifornia
Posts: 466
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Ethanol Free Fuel
Lebanon State. OR has 92UL for $3.45/ gallon
http://www.airnav.com/airport/S30
Good stop from CA to Arlington every year..... 
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08-05-2010, 07:02 PM
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Join Date: Aug 2007
Location: northern Cal
Posts: 111
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Places to buy pure fuel
http://pure-gas.org/
Go to this websight to find pure gas. There are others also if you get to checking around
Vern
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