Re: what to do with old fuel?
Lawn mower, older car, camp stove?
Professional disposal is pretty expensive.
We have a hazmat collection here twice a year. They will take it for free, but they make you leave it in the can you transport it in.
Personally, I have had good luck with old gas for the last 20 years.
I put stabil and Seafoam in it when purchased.
Make sure no water enters the tank.
Just used 2 or 3 year old gas in the old Johnson last week.
I don't use that motor much anymore, and when we needed a small motor in a pinch when my buddies motor broke, I didn't hesitate to grab the motor and old tank of fuel.