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Iso-Heet VS 10% Ethanol & fuel line freezing

Coldfinger

Well-known member
Lifetime Membership
I know the red bottle (Iso-heet) is typically used to prevent freezing and to remove water from fuel systems, but ethanol seems to do that too so I'm wondering why not just use ethanol fuel when you think you need to add some Iso?

Iso comes in 12oz bottles. Adding 1 bottle to 12 gallons gives you less than 1% concentration.

1 gallon of 10% ethanol gives you 12.8oz of ethanol. Running 12 gallons of ethanol gives you over a gallon of ethanol.

At least the first tank of fuel each season, I like to add Iso. Maybe that wouldn't be needed if I ran ethanol?

Iso-heet - web site (Golden Eagle product):
•#1 selling Brand of premium gas-line antifreeze.
•Absorbs 5 times more water than regular gas-line antifreeze.
•Cleans fuel injectors and carburetors.
•Designed for year round use in all 2-cycle and 4-cycle gas & diesel engines.
•Removes water from fuel system.
•Prevents rust and corrosion.

Ethanol.org:
Ethanol absorbs moisture in fuel lines, and keeps
gasoline flowing in even the coldest weather
 
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