PREP De-ethanolizing your storage gasoline

Luddite

Veteran Member
Does this really work?
We watched it on the internet, it must be true.

The theory is sound imho. The practicality is slim.

My suggestion for those of us in frigid climates: do what he did and remove gas AFTER a hard freeze. That captures the water in solid form to be disposed of later.

I drive MILES out of my way for pure gas...
 

mechanic 217

I was told there would be cookies!
Yes it will work BUT easier to find ethanol free gas or switch to propane/ng or diesel for a generator, think of how much you would have to process and the time involved for 20 or 30+ gallons.
 

Dobbin

Faithful Steed
The downside to removing the ethanol is that loss of octane.

Your engine may "hammer" (knock) running on low octane gasoline.

Beginning before WWII they used to use tetra-ethyl lead (leaded gasoline) Then they found in the 1980s the lead "escaping" into the environment and ending up as a dust on your roadways, or in the meat of fish you catch to eat.

So they switched out the lead and went to MTBE. Methyl tert-butyl ether - Wikipedia That didn't last long. Contamination of aquifers being the biggest bad.

Now they use ethyl alcohol - sold originally to a gullible public as a way to "stretch" fuel stocks, but actually in the overall picture INCREASES the consumption of petroleum fuel. Something has to power the tractors to grow and harvest that corn. And run the stills to distill the alcohol. And something has to fertilize that corn (Owner says corn is a "heavy feeder.") Petroleum derived fertilizers are the usual choice.

But - overall it is less affecting of the environment.

Maybe that depends on how you define "affecting..."

Dobbin
 

Anti-Liberal

Veteran Member
Just bought a Predator 5000 from Harbor Freight. It's a duel-fuel genny so I broke it in on propane. I won't use gas until I have to and when I do I'll be storing the non-ethanol gas that has been treated with storage stabilizer. Most inverter gennys have chinese briggs & stratton rip-off motors and their carburetors are sensitive to ethanol.
 

Sandune

Veteran Member
Biggest problem with ethanol in small engines is it will eat up the rubber seals and hoses. That's why Haxman was sniffing for the gas leak. I'm not sure if newer engines have been 'upgraded'. Plus it collects moisture from the air and dilutes the gas which is the biggest reason you can't store it for long.
 

cat killer

Senior Member
Better just to pay more and use premium in your storage gasoline. No ethanol to gum up carburetors and then just add PRI-G or other quality fuel stabilizer and you’re good to go.Thst

Better just to pay more and use premium in your storage gasoline. No ethanol to gum up carburetors and then just add PRI-G or other quality fuel stabilizer and you’re good to go.
That’s what I do.
 
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