[Eccl 10:2]

“STA-BIL
Fuel stabilizer $4.97 at Walmart”

$$$$$$$$$$$$$$$$$$$$$$$

I am just an average homeowner here, far from being an expert.

That said, I was told by my small-gas engine repair guy that if you use no ethanol gas (per the OP) that you don’t need Sta-bil (or the like), that Sta-bil was only needed for gas with ethanol.

I humbly submit this and ask for enhanced education.

Thanks to all for the sharing of truth and knowledge here.

[C210N]

That's my understanding as well... no ethanol, then no sta-bil. I sometimes leave no-eth gas in the tanks of overwintering yard equipment, with no problems, starts right up.

And here is a tip to have good supplies on hand of no-eth gas - I run it in EVERYTHING now (except cars):

In a 5-gal clear jug (walmart $5), dump 2-3 gallons of gas station eth-polluted gas. Add a liter of water. Shake. In 2 days, after complete settling, siphon out the water/eth mixture. You are left with pure no-eth gas.

Water has a much higher affinity for eth than gasoline, and the eth jumps from the gas to the water, leaving pure gas.

THe only issue might be changes in octane, however, I've had no problems, and only advantages.

[9422WMR]

Stored fuel is helped by a fuel additive. Auto gas will break down over time. One year will likely not hurt it, as long as it’s ethanol free.
Most fuel preservatives have added benefits for performance. Clean the carb, jets, etc.