People seem to confuse the clouds of white smoke produced by Seafoam as evidence of it doing something (good, bad or otherwise). The thing is, if you "seafom" a brand new car you're still going to get clouds of white smoke. Said another way, my take is that Seafoam is nothing much more than huile de serpent with a brand name.

 

I agree, and of course I know that the white smoke isn't evidence of anything, just the seafoam burning. Sure there are alot of additives and treatments that are snake oil, but I have seen good results with this stuff in cars, lawn mowers etc, or I wouldn't keep using it.