Lets just say for arguments sake that any given additive provides the advertised result. How then does it sustain this result? Is the snake oil some how changing something that allows less fuel to be pumped thru an injector (in this case) like changing how a o2 sensor "sees" exhaust oxygen? If that was the case this mouse milk would NOT have any effect on a non feedback carbed rig? True?

Logic might suggest that adding any given witches brew, would in reality, clean dirty components, such as injectors and intake valves resulting in better economy. Once these areas are clean, they should not, however, need continues useage. Correct? Periodic re-voodooing should maintain results by keeping valves/injectors clean.

After just now talking with my friend at the emissions tech center, he suggested that my "logic" is most likey correct.
However he noted that Acetone over prolonged useage will send your rig to the scrapper, even in small doses.

Have fun, don't waste your time, don't hurt your engine using paint solvents, use approved additives like BG 44K to clean your internal parts once every 6 months or so.

SD