gas stabilizer ???

I use blue STABIL in everything anymore that sits very long. I add to the gas can before buying gas for my small engines then no guessing

I look at it as cheap insurance

I also try to get pure gas, luck for me there were several places close I can get it. But they are real proud of it, more than premium most of the time.

Run dry is another option but I'm afraid of the seals and gaskets drying out then it leak when you fill it.