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A few other threads here discussed Ethanol free gas use:
viewtopic.php?f=44&t=669&start=10
viewtopic.php?f=27&t=156&hilit=ethanol
Thought I would add to those with a new Subject line for newcomer's if searching.
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Either treat your fuel with an Ethanol treatment such as Stabil:
https://smile.amazon.com/STA-BIL-FORMUL ... +treatment
OR even better,
find the gas that does not contain ethanol in your state. Link below will help in that endeavor.
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https://www.pure-gas.org/
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Pure-gas.org also has an I-phone app which comes in handy for us trailer boaters.
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Ethanol Free Gas
- AsLan7
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Ethanol Free Gas
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2002 Cobalt 262
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food
(CChat moderator)
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food
(CChat moderator)
- thunder550
- Vice Admiral

- Posts: 2246
- Joined: Sun Oct 08, 2017 2:16 pm
- Location: Scottsdale, AZ
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Re: Ethanol Free Gas
Argh closest one to me that has ethanol-free 87 is about a 2 hour drive. There's e-free 101 down the street though
Guess I'll just have to keep burning fuel frequently enough that it doesn't phase separate. "Honey, I know it's Christmas Day but I gotta keep the fuel tank refreshed! See you in a few hours!"
How long does fuel have to sit before it starts to separate? Meaning at what duration of non-use should one consider adding stabilizer?
How long does fuel have to sit before it starts to separate? Meaning at what duration of non-use should one consider adding stabilizer?
1995 Cobalt 252 - 502 Mag EFI - Bravo 1 - 21" Revolution 4
Re: Ethanol Free Gas
Add stabilizer with with eth treatment every time. Boats sit. I would only not treat if I was going to use it all in a weekend. I use valvtect treatment
2016 R7 VP 380
2014 220S Merc 5.0L (sold)
Columbus, OH
Chautauqua, NY
2014 220S Merc 5.0L (sold)
Columbus, OH
Chautauqua, NY
Re: Ethanol Free Gas
Ethanol free 91 octane is literally everywhere around here. That’s all I use in the toys. 2 stroke and turbo four stroke snowmobiles should use it, and we are a big snowmobile area.
2017 Cobalt R7
"Cobalt" Blue
6.2L VP 380 or 430
#FARCON Marine
"Cobalt" Blue
6.2L VP 380 or 430
#FARCON Marine
Re: Ethanol Free Gas
I’m moving
2016 R7 VP 380
2014 220S Merc 5.0L (sold)
Columbus, OH
Chautauqua, NY
2014 220S Merc 5.0L (sold)
Columbus, OH
Chautauqua, NY
- AsLan7
- Fleet Admiral

- Posts: 11526
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Re: Ethanol Free Gas
Ha...it's funny (or maybe strange) how it's all around Ohio except Columbus...very weird.
2002 Cobalt 262
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food
(CChat moderator)
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food
(CChat moderator)
Re: Ethanol Free Gas
Yea went to get some at the marina before winterizing on a Wednesday and they weren’t open till sarurday in October....so I didn’t get it
2016 R7 VP 380
2014 220S Merc 5.0L (sold)
Columbus, OH
Chautauqua, NY
2014 220S Merc 5.0L (sold)
Columbus, OH
Chautauqua, NY
- AsLan7
- Fleet Admiral

- Posts: 11526
- Joined: Sat Jul 29, 2017 10:58 am
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Re: Ethanol Free Gas
Marina in Chautauqua, NY?ajcampen wrote: Wed Oct 25, 2017 7:51 pm Yea went to get some at the marina before winterizing on a Wednesday and they weren’t open till sarurday in October....so I didn’t get it
2002 Cobalt 262
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food
(CChat moderator)
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food
(CChat moderator)
- jhnmdahl
- Vice Admiral

- Posts: 2440
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Re: Ethanol Free Gas
It’s around in Minnesota, but not technically legal to put in a car other than a collector car. Our boat and small engines all get ethanol-free gas, with sta-bil every time.
Administrator of the www.cobaltchat.com Cobalt boats community forum
2015 210 (Volvo Penta 5.7L V8-225)
2015 210 (Volvo Penta 5.7L V8-225)
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