funflyer
Member
- Joined
- May 1, 2016
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- 21
The last thing I want to start is another debate on the subject of Ethanol so for those of you that have no problems with it's use please stop reading and click the back button. For those of you who, like me, want nothing to do with the vile swill in your small engines, read on. This is not my idea but something I picked up on the net several years ago and has served me well. The closest gas station that sells E0 is 70 miles from me so for the 10 to 15 gallons I use in a season it's worth it to remove the ethanol myself.
The drain tube is made from 3/4" clear tubing, a 1/2" ball valve and 2 hose clamps.
Starting with an empty 5 gallon gas can, I add 64oz of distilled water and head to the gas station to fill it the rest of the way with 91 octane gas (4.5 gallons). 10% ethanol will increase the octane value by 2 so starting with 91 octane will yeild 89 octane when the ethanol is removed. It takes no time for the ethanol to absorb the water so by the time I get home (about 5 minutes) it's ready to be drained off.
Here's my old Gott gas can turned upside down on my B&D workmate with the spout set at the lowest point. Water is heavier than gas so it will quickly settle to the lowest point (the spout) where it can be drained.
Hose assembly clamped to the spout. The bubbles seen inside the tube are water/ethanol droplets heading south. This picture was taken near the end of the procedure so the droplets are smaller and there are less of them.
It's easy to see in this pic how fast the water/ethanol settles to the bottom of the hose.
Here's what I drain it into to see how much ethanol is actually removed from the gas. This batch had 8% ethanol.
Near the end of the draining, you can clearly see where the swill ends and pure gas begins.
I usually drain off a few ounces of gas at the end to make sure there's not a drop of the swill left in the tube.
The drain tube is made from 3/4" clear tubing, a 1/2" ball valve and 2 hose clamps.
Starting with an empty 5 gallon gas can, I add 64oz of distilled water and head to the gas station to fill it the rest of the way with 91 octane gas (4.5 gallons). 10% ethanol will increase the octane value by 2 so starting with 91 octane will yeild 89 octane when the ethanol is removed. It takes no time for the ethanol to absorb the water so by the time I get home (about 5 minutes) it's ready to be drained off.
Here's my old Gott gas can turned upside down on my B&D workmate with the spout set at the lowest point. Water is heavier than gas so it will quickly settle to the lowest point (the spout) where it can be drained.
Hose assembly clamped to the spout. The bubbles seen inside the tube are water/ethanol droplets heading south. This picture was taken near the end of the procedure so the droplets are smaller and there are less of them.
It's easy to see in this pic how fast the water/ethanol settles to the bottom of the hose.
Here's what I drain it into to see how much ethanol is actually removed from the gas. This batch had 8% ethanol.
Near the end of the draining, you can clearly see where the swill ends and pure gas begins.
I usually drain off a few ounces of gas at the end to make sure there's not a drop of the swill left in the tube.
