Disposing of old gasoline?

I am figuring you have about 3 1/2 gallons.
About 10 to 12 dollars worth.
I would not possibly plug a filter or an injector with it.
Lawn mower first or have fun with an ant or mole hill with it,
these new fuel pumps and there fancy little sock style filters that are attached to them would cost way to much for labor and parts for me to put it in a car, Just be careful and mark the gas can "Lawn mower only"
Just my pennies worth.