It’s probably naphthalene or acetone either of which cleans and runs in engines. I used to throw a bottle of Ronsonol (wick lighter fluid) in the tank once in a while back in the day, about 1/5 the cost of a bottle of gasoline additive and essentially the same thing.
:: I used to throw a bottle of Ronsonol (wick lighter fluid) in the tank ::
“Sea Foam” has made quite a comfortable living on that concept.