Disposal of Old Gasoline ...?

[My 2 cents]

Question 1.  Are you trying to dispose of the bad gas in the most environmentally friendly way possible, or are you trying to get some positive use out of it, or perhaps both?

Question 2.  Will either of these goals be achieved by burning it up in your car’s engine?

Let’s say your car gets 30 mpg, so 300 miles on 10 gallons of gas.  If you add a gallon or 2 of funky fuel that won’t run an engine on it’s own to 10 gallons in your tank, would you expect to get more than 300 miles, or less because the 10 gallons of fresh gas is now doing more than just pushing your car, it’s also powering an incinerator?

And since your car’s engine is not designed to be an incinerator, how clean will the resulting emissions be?

I’m not trying to rattle anyone’s cage, I’m just curious if anyone has thought about it from this angle.