[ankit]

I've used them a couple of times. When there was no problem to start with, I couldn't notice a differnce. But once my dad's car bogged down with the throttle opening past 45% or something. I used something this time and it fixed the problem.

I have heard good stuff about Sea Foam, but again if your car isn't having any idle/fuel injection problems to start with I'd think twice before adding additives to my car.