Old fuel disposal or use ?

Just to be clear- I said I used it in my non-smog step van, diluted with the fresh gas in the tank. I did it all the time!
I wouldn’t use it in a lawn mower, etc. I guess you could, if diluted with enough fresh gas, but that could take years. Old gas is what screwed up the small engine in the first place. Again, old gas damage was the number one repair I did on outdoor power equipment!