what is the best fuel additive to clean fuel injectors on a 90 ford 150.?
- 1 decade agoFavorite Answer
its not gonna hurt to put stp fuel treatment or something like that in the tank, but it is not gonna be very efficient for cleaning the injectors. there is a tool especially for cleaning the injectors. motorcraft has a fuel injection cleaner that they use to flush the injectors, but the tool is a specialty tools meaning that you have to have a shop do it unless you know someone that has one. it works really well and it is not that much to have it done. i would suggest getting the injectors cleaned once a year. I'm a certified mechanic that does all my own work at home, and i still pay a shop to flush my injectors once a year