CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. Fuel injector cleaner serves an important function in ...

Direct injection offers numerous benefits ... SEE ALSO: Should I Use Fuel Injector Cleaner? If you are worried that carbon buildup may be affecting the performance or fuel economy of your engine ...

Cleaners can help eliminate these harmful ... systems can exacerbate carbon build up, as can direct fuel injection. As Barker ...