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#2749602 - 09/20/12 03:24 PM Making pure gas from E10?
Kestas Offline



Registered: 06/04/02
Posts: 10841
Loc: The Motor City
Is there a good way to scrub ethanol from the gasoline for use in our garden equipment? I was thinking of buying pure gas from a marina next time I'm near one, but people tell me it cost $6/gal.

Is it as simple as adding a good amount of water, shake, let settle, and decant the gasoline? Has anyone tried it?

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#2749624 - 09/20/12 03:40 PM Re: Making pure gas from E10? [Re: Kestas]
Rand Online   content


Registered: 08/20/03
Posts: 7778
Loc: Barberton,Ohio
better off buying the marina gas for 6$
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#2749627 - 09/20/12 03:43 PM Re: Making pure gas from E10? [Re: Rand]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 1694
Loc: Houston, Texas
it usually costs about 80 cents per gallon more.
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#2749637 - 09/20/12 03:51 PM Re: Making pure gas from E10? [Re: Kestas]
JHZR2 Offline



Registered: 12/14/02
Posts: 33786
Loc: New Jersey
I'd want to dry that gas before burning it.

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#2749662 - 09/20/12 04:16 PM Re: Making pure gas from E10? [Re: motor_oil_madman]
Turk Offline


Registered: 02/03/06
Posts: 8020
Loc: MN
Originally Posted By: motor_oil_madman
it usually costs about 80 cents per gallon more.


What a scam. mad

It used to cost 14c more a gallon for many years.
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#2749899 - 09/20/12 08:38 PM Re: Making pure gas from E10? [Re: Kestas]
Sonataman Offline


Registered: 01/15/12
Posts: 264
Loc: Ga
Phase separation!

Would think it best to have the fuel analyzed before use, but draining off the water is the fun part.

Lab style separatory funnel should work, but finding one for large scale use is expensive.

Have thought about this myself but you cost yourself 10% more just by removing the ethanol, plus time and dangers associated with handling gasoline.
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#2750112 - 09/21/12 06:16 AM Re: Making pure gas from E10? [Re: Kestas]
sdowney717 Offline


Registered: 10/01/05
Posts: 236
Loc: Newport News, VA
yes adding water gets rid of the alcohol.
Since the E in gas gives it a little octane you downgrade it from 87 to 84 at most. This will run fine in you older small motors. I dont know about a new lawnmower, it depends on its CRatio.

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#2750418 - 09/21/12 11:22 AM Re: Making pure gas from E10? [Re: Kestas]
Kestas Offline



Registered: 06/04/02
Posts: 10841
Loc: The Motor City
I suppose it would make more sense to start with premium so as not to suffer too much octane loss.

Dirving to a marina is very inconvenient for me. They're far away and not on the way to anywhere I drive.

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#2776944 - 10/18/12 09:43 PM Re: Making pure gas from E10? [Re: Kestas]
GMorg Offline


Registered: 01/29/06
Posts: 2329
Loc: Mizzou-land
I would think that you are likely to remove some of the detergents too.

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#2823411 - 12/04/12 09:58 AM Re: Making pure gas from E10? [Re: Kestas]
Darkfire Offline


Registered: 06/11/11
Posts: 102
Loc: MI
Originally Posted By: Kestas
Is there a good way to scrub ethanol from the gasoline for use in our garden equipment? I was thinking of buying pure gas from a marina next time I'm near one, but people tell me it cost $6/gal.

Is it as simple as adding a good amount of water, shake, let settle, and decant the gasoline? Has anyone tried it?


I ran "washed" gas all spring and summer for my lawnmower which uses a 4cyl Honda GCV-160. Ran perfectly fine, noticeably improved power and fuel efficiency from E10. I can cut a full 1/3 additional lawn surface area with the washed gas.

Use a "no spill" gas can that has the push button dispenser (the one where you can set it so the opening is on the bottom, parallel to the ground so that the water/ethanol mixture is the 1st thing that comes out because it's heavier).

I would get 4 gallons of 93 E10 (so that I would still have at least 89 octane after removing the 112 octane alcohol which is fine for a 4 stroke) then add one gallon of water. Shake well for 5 minutes continuously (somewhat of a workout). Then let it sit 30 mins, drain off the 1 gallon of water you added (an empty distilled gallon water jug works fine) plus the 51+ ounces of ethanol.

Rinse and repeat a second time to get any residual ethanol out. Then use an F15C Mr. Funnel fuel filter and filter the entire remaining contents through into another clean & dry 5 gallon container--this will catch any minute amount of free water.

Originally Posted By: JHZR2
I'd want to dry that gas before burning it.

After I do all of the above I add 1 ounce of seafoam. If you still weren't comfortable with that you could add a small amount of iso-heet red bottle. A lot of people have often used seafoam anyways so they wouldn't be changing anything additive wise.

I guarantee that if anyone tries this that whatever you run it in will run noticeably better than on E10.

Even before any isopropyl is added, there is zero water visible at the bottom of the remaining gas that was just filtered. I confirmed this by dispensing it in a clear container and inspecting it.


Edited by Darkfire (12/04/12 10:03 AM)

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#2823663 - 12/04/12 01:58 PM Re: Making pure gas from E10? [Re: Turk]
Samilcar Offline


Registered: 07/11/08
Posts: 1478
Loc: Iowa
Originally Posted By: tpitcher
Originally Posted By: motor_oil_madman
it usually costs about 80 cents per gallon more.

What a scam. mad

It used to cost 14c more a gallon for many years.

Still costs 10 cents per gallon more around here.

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#2829497 - 12/09/12 05:30 PM Re: Making pure gas from E10? [Re: Kestas]
Kestas Offline



Registered: 06/04/02
Posts: 10841
Loc: The Motor City
Today I just bought some premium (Shell 93 octane) to wash the alcohol. I used a clear glass bottle for washing. Add water to gas, shake it up, then let it settle. It seems that ethanol washes out of the gasoline rather quickly. The only thing that got me worried is that the gasoline remained cloudy, even after letting it sit for a couple hours. The water portion became clear with time. A second wash didn't seem to be necessary.

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#2829840 - 12/10/12 02:59 AM Re: Making pure gas from E10? [Re: Kestas]
Shannow Online   content


Registered: 12/12/02
Posts: 26813
Loc: a prison island
You could probably finish it with a zeolyte...which, funnilly enough is what I dry my ethanol with when mucking around with my biodiesel experiments.

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#2833022 - 12/12/12 07:18 PM Re: Making pure gas from E10? [Re: Kestas]
hatt Offline


Registered: 01/03/12
Posts: 1111
Loc: Florida
I'd just buy the $6/gal gas before messing with all that.
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#2834132 - 12/13/12 06:05 PM Re: Making pure gas from E10? [Re: Kestas]
Kestas Offline



Registered: 06/04/02
Posts: 10841
Loc: The Motor City
For some reason, the gasoline isn't all that cloudy anymore. Nothing has separated either.

I'd much rather mess with washing gas than to drive from one marina to the next, begging for pure gas. Washing the gasoline is faster and cheaper. Pure gas isn't as easy to come by in Michigan as it is in Florida.

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#2838421 - 12/17/12 07:06 PM Re: Making pure gas from E10? [Re: Kestas]
tig1 Offline


Registered: 01/03/09
Posts: 9855
Loc: Illinois
Why would you want to do this?
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#2838588 - 12/17/12 09:26 PM Re: Making pure gas from E10? [Re: Kestas]
Kestas Offline



Registered: 06/04/02
Posts: 10841
Loc: The Motor City
To prevent phase separation and the subsequent gelling and corrosion that follows in my equipment. I'm not always diligent in draining the OPE fuel quickly after the season. Plus, one never knows when the last use of a snowthrower may be in the season. One gallon is all I've prepared.

There may also be the added benefit of running pure gasoline, as my old equipment was designed to run. I have a 40 year old snowthrower, 30 year old lawnmower, 30 year old chain saw, 20 year old leaf blower, and 20 year old generator. I'm not about to replace all this equipment for the sake of E10.

I may even consider doing this for my 41 year old car. Though I suspect it'll be cheaper to retune it properly.

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#2854165 - 12/31/12 08:51 PM Re: Making pure gas from E10? [Re: Kestas]
flstffxe Offline


Registered: 03/08/08
Posts: 137
Loc: MN, USA
Originally Posted By: Kestas

Pure gas isn't as easy to come by in Michigan as it is in Florida.


This site may help you.
pure-gas.org Michigan results 120 stations

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#2854676 - 01/01/13 12:05 PM Re: Making pure gas from E10? [Re: Kestas]
Kestas Offline



Registered: 06/04/02
Posts: 10841
Loc: The Motor City
I've been on that site many times. Most of the stations are at marinas. None are near me in Livonia. None are along any of my commutes. The closest station is listed across town in Allen Park and would cost me $10 in gas just to go there. Then there's the chance that if I go there, the listing could be a goof and there is no pure gas.

Go on that web site, pure-gas.org, and click on "map". Compare what you see at the Detroit area with the Minneapolis-St. Paul area and you'll apprieciate how difficult it is for me to find pure gas.

It's just so much easier and cheaper for me to wash premium fuel.

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#2861311 - 01/07/13 10:08 AM Re: Making pure gas from E10? [Re: Darkfire]
THE_TROTS Offline


Registered: 12/28/12
Posts: 61
Loc: Wixom, MI

Quote:
After I do all of the above I add 1 ounce of seafoam. If you still weren't comfortable with that you could add a small amount of iso-heet red bottle.
I guarantee that if anyone tries this that whatever you run it in will run noticeably better than on E10.

Even before any isopropyl is added, there is zero water visible at the bottom of the remaining gas that was just filtered. I confirmed this by dispensing it in a clear container and inspecting it.


Why would you remove alcohol from fuel just to add more alcohol?
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#2861849 - 01/07/13 05:54 PM Re: Making pure gas from E10? [Re: tig1]
OilFool Offline


Registered: 12/31/12
Posts: 127
Loc: NNJ
Originally Posted By: tig1
Why would you want to do this?


Go to any Landscaping shop that repairs equipment and ask about Ethanol in fuel.
Apples to Oranges some may say...
But it does, at a minimum, cost MPG with E10 vs E0.

My handwritten numbers coincide within 0.02% of an App I use as well as the ScanGuages.

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#2951875 - 03/26/13 08:24 AM Re: Making pure gas from E10? [Re: Kestas]
Silverado12 Offline


Registered: 02/26/13
Posts: 764
Loc: Central Virginia
A good alternative is to run Lucas fuel treatment in your gas. It mixes with your gas and gives everything a slightly oily coating. Works well for lubing elec fuel pumps in your car. Mix 3 oz per 10 gal gas. You could also run the gas out of your small engines before putting them away for the winter.


Edited by Silverado12 (03/26/13 08:24 AM)
Edit Reason: sp
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#2955890 - 03/29/13 07:38 PM Re: Making pure gas from E10? [Re: Kestas]
HerrStig Offline


Registered: 08/24/11
Posts: 3009
Loc: Boston, MA
Consumer Reports in the latest issue advocates buying eight buck a quart "pure gas" from Hagar's Dustbin and such places for OPE, and CU isn't often encouraging "free spending" on such things unless there is a reason.

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#2957450 - 03/31/13 09:24 AM Re: Making pure gas from E10? [Re: Silverado12]
HerrStig Offline


Registered: 08/24/11
Posts: 3009
Loc: Boston, MA
Originally Posted By: Silverado12
A good alternative is to run Lucas fuel treatment in your gas. It mixes with your gas and gives everything a slightly oily coating. Works well for lubing elec fuel pumps in your car. Mix 3 oz per 10 gal gas. You could also run the gas out of your small engines before putting them away for the winter.
Lucas may do nothing more than coat the inside of a motorcycle fuel tank during storage, but that's enough reason for me to keep some around for the two wheel fleet.

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#2962391 - 04/04/13 04:29 PM Re: Making pure gas from E10? [Re: Kestas]
Coprolite Offline


Registered: 07/03/11
Posts: 927
Loc: TX
I just use Stabil generously and call it a day. Believe it or not the PP/PU and clean air filters have the biggest impact on my lawnmower. The Stabil keeps the gas fresh even into the next year, so I don't really stress about that part of the equation. It includes a carb cleaner and would stabilize even E0 gas...

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#2974242 - 04/16/13 08:21 AM Re: Making pure gas from E10? [Re: Kestas]
KenO Offline


Registered: 10/29/07
Posts: 1174
Loc: Auburn, GA
OK, question on the fuel washing - what do you do with the byproduct (water + ethanol)?? Can it be used for anything?
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#2975636 - 04/17/13 12:56 PM Re: Making pure gas from E10? [Re: Kestas]
Coprolite Offline


Registered: 07/03/11
Posts: 927
Loc: TX
Hazmat waste container filler.

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#3187780 - 11/14/13 03:51 PM Re: Making pure gas from E10? [Re: Kestas]
Shaman Offline


Registered: 07/27/04
Posts: 2298
Loc: Frankfort, Kentucky
Washer fluid if there isn't any gas in it. The washer pump seals would swell fast enough if there was

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#3189185 - 11/16/13 05:42 AM Re: Making pure gas from E10? [Re: Kestas]
Shannow Online   content


Registered: 12/12/02
Posts: 26813
Loc: a prison island
Shaman,
great thinking

methylated spirits is about $3-6 a litre here, the ethanol component of petrol 15c, or $1.50 neat

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#3194746 - 11/22/13 11:41 AM Re: Making pure gas from E10? [Re: Shannow]
sdowney717 Offline


Registered: 10/01/05
Posts: 236
Loc: Newport News, VA
Washed gas works great in small engines.
What is washed out is alcohol and water, so then let it dry out in the air.
such as poured out on the driveway.

The government should make washing gasoline a punishable crime as it works so well and circumvents the EPA polluting the air rules.
If you see your neighbor doing these things, can't you call the EPA on them and get a reward for being a snitch?
I think the government encourages this behavior.

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#3202377 - 11/30/13 06:46 PM Re: Making pure gas from E10? [Re: Kestas]
Kestas Offline



Registered: 06/04/02
Posts: 10841
Loc: The Motor City
I don't think washing gas would become a widespread problem. Why would anyone throw away BTU's in the form of alcohol that they paid for. I only do it for the mechanisms that often suffer from phase separation.

BTW, the water and alcohol mix I decant from washed gasoline has little more than a trace of gasoline smell, if at all. No need for hazmat. It's safe to throw on the ground.

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#3209157 - 12/07/13 01:17 AM Re: Making pure gas from E10? [Re: Kestas]
TiredTrucker Offline


Registered: 01/04/08
Posts: 1015
Loc: Kellogg, IA
I also wonder why anyone would do this. I have used E10 in riding lawn mowers, small engines, portable generators, etc for years. Some of them will sit for some time between uses. I have never had any issues. I do add PRI-G stabilizer to the gas that goes into these. This phase separation thing and other ideas, usually promoted by those that have some sort of ethanol phobia, I have never concerned myself with.... in almost 4 decades of ethanal blend gas use.

But to each his own. I never chide anyone for being cautious if their gut tells them to. I just never wasted any time worrying about such things.
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