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Re: Gas Line Anti Freeze
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As others have posted you should not have gas line freeze ups when using E-10 fuel. Any free water present should not freeze and will go back into solution at the next fill up.
You can prove it to yourself if you like: Take 48 oz (3 pints) of E-10 fuel and add 1 oz of water. Shake or stir and allow to settle, you should see a water/ethanol phase form at the bottom of the container. If you place the container in the freezer (leave outside if cold) it should remain liquid.
The fuel above the water/ethanol phase is straight gasoline. If you pour off the gasoline and again add 1 oz of water as before you will note the water will freeze - don't try this in your freezer with a glass container. This is why we needed Heet before E-10 fuel.
You may find it interesting to note: At 70 degrees F, E-10 will absorb approximately 0.5% water by volume before phase separation occurs as compared to straight gasoline which will absorb approximately 0.02%. One of the ways water enters fuel is by condesation of humid air inside a less than full fuel tank. The amount of water condensed in this manner is the same regardless of the fuel in the tank, E-10 or straight gasoline. From this one can expect less chance of free water when using E-10 blends versus straight gasoline since E-10 can hold much more water.
From my experience: As a kid I remember periodically removing the sediment bowl on our 8N Ford to empty out the water. I have had my 8N for over 10 years now and use E-10 fuel - I have never observed water in the sediment bowl.
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