Originally Posted by TheOneDoubleN
A real fuel injector service involves physically cleaning the intake tract with something like seafoam, and will often be coupled with a chemical added to the oil and fuel tanks. Regardless, this is elective service, certainly not something that would be required at all within the first 100k mi or 5-7 years.
When I think of real fuel injector service that is not what I think of. I am talking about pulling the injectors and having them ultrasonically cleaned with all new components installed. I just had some Bosch ones done for the Z.