Overdosing gasoline

[mechtech2]

An overdose of 2-3 times the recommended amount will not hurt your vehicle.
I am talking about good in tank cleaners.
It will make any cleaning faster and more complete, for sure.

 

[JHZR2]

Even with no name gas I would not overdose, as it could do more harm than good. High doses have been associated with soft metal wear and reduced economy. With no name IMO it just makes it more important to use a maintenance dose. With adds, less is more.