I don't doubt you at all. That sequence makes perfect sense.
Cart runs poorly.
Add Seafoam.
Cart runs worse.
Change filter.
Cart runs great.
But until you eliminate the uncontrolled variables from the "test", you have to wonder how much the filter change helped vs the additive.
Except for stabilizer, I remain skeptical wrt additives. Even the refinery chemists agree that those who store fuel or engines with fuel should stabilize that fuel.
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Hi Whiskey
Thanks for your post and I do agree with you. But aren't we each basing our conclusions based on uncontrolled variables? You have doubts the stuff works and that's fair enough. I took a quick shot from the hip based on an experience and think it might actually work. I admit I got a "D" in chemistry but that's Ok too b ecause this is just a discusion board. Heck, If there is ever to be a cure for cancer it might come from just this sort of a bs session.
rimshot ;-)