Lawn-boy brand oil has fuel stabilizer in it.
I got a Lawn-Boy 2cycle mower, 12 seasons old. I used last years gas in the mower and from the gas can, filled the tank, dumped in a few ounces of Seafoam, turned the gas one, primed about six times and she fired on the 2nd pull. Mowed the yard.
I use Seafoam every year on the first tank of the season on all my 2 cycle engines. Usually run it in my boat most of the season unless I am going through a lot of fuel. A lot of fuel means 6 or more gallons on a weekend. My big motor is a 25 hp so I can run all day on 6 gallons.