Whats the best and safest one out there? I used stp and my truck and my fuel pump went out shortly after. Could have been coincidence. Who knows. But i want something that WONT do that. Thanks

 

I like Techron.

Of course, who's to say that means anything.

 

i would personally stay away from that injector cleaner. i fried an injector with that stuff. my dad was going through o2 sensors with injector cleaner. the shops around here recommend running a tank of amoco or mobil gas through your car once a month or so. the only thing they said to put in your gas is seafoam. i have not had any problems with seafoam since i have used it.

 

Do a search on "seafoam"

 

Whatever one you choose, I personally think it's better to add smaller doses of it in regular intervals compared to one big huge dose at longer intervals, which may shock the system.