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Old 10-23-2008, 01:33 AM   #1
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Moisture In Fuel

Does anyone else have trouble with moisture in their fuel tank? I seem to be having trouble with this. Seems to start when it gets cooler outside. Had this problem last winter also. Spits and misses, but a bottle of "HEAT" seems to clear it up. So I pour in a bottle at fillups.

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Old 10-23-2008, 01:55 AM   #2
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Usually its a problem for diesel, and not gasoline... the only way it really gets contaminated is at the gas stations. But if I were you, I'd look at the fuel lines and seals under your Jeep for any cracks. That would probably be the only other way for moisture to get in... might try a new gas cap while you're at it.

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Old 10-23-2008, 02:11 AM   #3
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Have a new locking cap I bought back in the summer. If I had cracks in seals or gaskets wouldn't fuel leak out? I would think I would see drips or at least smell gas? I did have this trouble last winter, but not through the summer. I don't do any wheelin as this is my DD, I,ve not been in deep puddles or creeks or such. Its just strange.
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Old 10-23-2008, 02:13 AM   #4
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Then it is probably the gas station you are using.
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Old 10-23-2008, 05:29 AM   #5
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It usually happens when you keep the tank less than full, more air inside more condensation.
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Old 10-23-2008, 02:47 PM   #6
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Condensation is a problem in the Spring and Fall. I always throw in a can of fuel injection cleaner when the weather changes dramatically.
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Old 10-23-2008, 04:06 PM   #7
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My tank emptys every three days so the air inside does not stay long enough to drop moisture.
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Old 10-23-2008, 11:07 PM   #8
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Me too, I drive 25 miles one way to work. So I get three days out of a tank of fuel. I will be moving in the next couple of weeks and will have a take home car. I'm interested in how it will do when it sits in the driveway more.
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Old 10-24-2008, 05:23 AM   #9
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There is a product called startron made by starbrite that you can pick up mostly at marine stores. This will disperse the water in fuel which renders it burnable. It also will break the bonds of any ethanol that has bonded with the water. The combination of the two creates a gel that can clog the fuel filter and injectors. It also robs octane.

As a bonus it also helps to clean injectors and the combustion chamber.

Because an on road vehicle's tank isn't vented however there should be very little condensation if any. Condensation can also develop in the exhaust. Most likely any spitting is coming from the exhaust. It would have been turned to steam in it originated in your gas tank.
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Old 10-24-2008, 05:25 AM   #10
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Quote:
Originally Posted by crj101 View Post
Me too, I drive 25 miles one way to work. So I get three days out of a tank of fuel. I will be moving in the next couple of weeks and will have a take home car. I'm interested in how it will do when it sits in the driveway more.
150 miles a tank...that's like 11 mpg
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Old 10-24-2008, 06:49 AM   #11
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Quote:
Originally Posted by sailsurf7713 View Post
150 miles a tank...that's like 11 mpg
My gas gauge only goes to 3/4 tank when I fill up and I try and fuel before the light comes on. But thats another fuel tank problem! I normally get about 17 mpg. At 65 mph. With 125K.

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