I've been reading the archives about gasoline additives. Many entries advise putting a quart of Automatic Transmission fluid (ATF) in a tank of gasoline every so often to clean the fuel injectors.

Somehow this seems radical to me. Does this work better (or less costly) than buying fuel injector cleaners like STP, etc.?

And if it does work well, how often should one do this.

In cooperation,
William Polowniak