There is so much misinformation on ethanol that it's hard to know what is true.
On small engines, I always use stabile on the last tank, drain as much as possible and then run them dry. I never used to worry about it but since ethanol, I've had to rebuild one (out of a set of four) motorcycle carbs and a snowblower carb.
The boat has two 130 gallon steel tanks, draining is not practical and having 260 gallons of 6 month old fuel in May is not appealing. So I load up with stabile or similar during the last top off and store with somewhere under a quarter tank. My mechanic winterizes the engines and does whatever he does. Come spring it starts right up. Then I usually fill up with fresh gas.
This is season seven for this boat coming up and it has never seen non-ethanol fuel.
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