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Any Ideas Of What's Happening To My Fuel ?


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#1 Alc ONLINE  

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Posted August 16, 2012 - 03:49 PM

This is the second time that I had to drain the fuel tank and carb. on the DB 600. Almost seems the ethanol separated. I keep it outside under a plastic tarp .This is what I drained from the tank today ,it's been sitting with the fuel in for about a month . I use the same gas can for all my equipment with Start brite added .I have no problems with anything else . Could it be from the excessive heat building up from under the tarp ? Condensation ? That's not showing what I drained from the filter & fuel bowel and lines .Any ideas ? Al

http://www.starbrite...)&ProductSSCat=

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Edited by Alc, August 16, 2012 - 03:50 PM.


#2 KennyP ONLINE  

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Posted August 16, 2012 - 04:11 PM

I think the tarp may be playing into this. Find something to hold the tarp edges up to let more air under there.
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#3 olcowhand OFFLINE  

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Posted August 16, 2012 - 04:20 PM

Ethanol draws moisture from the air, so if excessive moisture is being caught & held under the tarp, it may increase moisture in the fuel to the point the water laden ethanol does separate. I've had similar issues, and the worst is chain saw & weed eater fuel lines turning to mush from the ethanol. I sure miss the GOOD gasoline from years gone by!
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#4 John@Reliable OFFLINE  

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Posted August 16, 2012 - 04:23 PM

If you must store for awhile, fill the tank (less surface area for Condensation) and maybe some tape over the vent hole would help to. Just remember to remove the tape before use.
P.S. real tractor covers breath to avoid heat/water vapor build up.
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#5 JDBrian OFFLINE  

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Posted August 16, 2012 - 04:38 PM

Not sure about in the USA but in Canada the top grade fuel does not have Ethanol. I've started to buy that for my power equipment where I don't use the fuel quickly. I notice my favourite station is open again after new tanks and pumps were installed. On the regular and mid grades the new pump are labelled with a big sign that says may contain up to 10% Ethanol. I didn't think the percentage was that high!
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#6 tinner OFFLINE  

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Posted August 16, 2012 - 05:14 PM

I agree that it's probably caused by the tarp. As John said always be sure the tank is completely full too. Hate the 10% mix but I guess it's here to stay.

#7 HydroHarold OFFLINE  

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Posted August 16, 2012 - 06:09 PM

Try changing where you buy fuel. A few years ago my local Mohmar Mart was selling gas from a tank with a defective (broken) fuel filler connection. I took a sample pretty much like you have there down and showed it to him. I guess he had gotten plenty more complaints as well because about a week later the tanks were replaced.

#8 LilysDad OFFLINE  

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Posted August 16, 2012 - 06:50 PM

Not sure about in the USA but in Canada the top grade fuel does not have Ethanol.


Haven't you heard? We send all the good gas to Canada, along with the cheap pharmacuticals.

While we're on the subject, that stuff in the bottom of the bottle is pure alchohol and water! Don't waste it.

#9 olcowhand OFFLINE  

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Posted August 16, 2012 - 06:55 PM

I wish all fuel tanks had a low spot, or "sump" for the water & alky to settle into, along with a petcock to allow easy draining of the stuff! Having the fuel valve in the bottom of the "main floor" of the tank, above this sump.

#10 tinner OFFLINE  

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Posted August 16, 2012 - 06:56 PM

While we're on the subject, that stuff in the bottom of the bottle is pure alchohol and water! Don't waste it.


Brings back memories of those who drank a little Aqua Velva.

#11 KC9KAS OFFLINE  

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Posted August 16, 2012 - 07:09 PM

Ethanol is why I buy my fuel in 5 gallons incriments and add a 16 oz can of Seafoam to the fuel. It really helps keep it stable for much longer than the 30 days without the Seafoam!
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#12 twostacks OFFLINE  

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Posted August 16, 2012 - 07:16 PM

:iagree: That Seafom is good stuff.

#13 dropped82 OFFLINE  

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Posted August 16, 2012 - 08:17 PM

These guys are right. Ethanol is like a sponge to moisture. Not sure if you have a Co-Alliance or some sort like a Country Mark but they do not use ethanol in there fuels no matter what grade. At least the one by me doesn't. Boats actually suffer the same fate if fueled up outside a marina. You can buy additives like Seafoam or even Stabil will also do the same thing. They keep the water from soaking in.

#14 jpackard56 OFFLINE  

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Posted August 16, 2012 - 08:38 PM

Just wait, we've got even higher alcohol contents being tested around some of the larger cities...Adding a dimple and petcock my turn into a business enterprise for somebody if this nonsense keeps up... :(

#15 IamSherwood OFFLINE  

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Posted August 16, 2012 - 08:40 PM

I agree that it's probably caused by the tarp. As John said always be sure the tank is completely full too. Hate the 10% mix but I guess it's here to stay.


I agree. The tarp will act like a cloud. Holding in, the heat or cool longer than if there was no tarp.
Temp change causes condensation. With the tarp, for longer periods of time.

Luckily, in Canada, we can still get non ethanol fuel. It's more money, but cheaper than paying the mechanic.




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