What feil injector cleaner do you recommend running in the family car/SUV/Truck? I have a friend that recommends Berryman every 3-4 tank fills? Do most of you consider adding the Berryman or other cleaner products as a fuel additive sufficient to bypass the dealership cleaning?
I used to add Lucas Upper Cyl Lubricant quarterly but stopped that a few years ago. The Lucas stuff seemed to work well if you keep up with it. Otherwise you might be better off pulling out the injectors and having them cleaned.
