I have done a search and read all about cleaning the injectors using products like Seafoam. I have actually used it on my brothers truck and it must do something because I got so much smoke out of his tail pipe. While at the dealership getting warranty work done this week, I talked to the service advisor about the method they use to clean injectors. He says they disconnect your fuel line and connect it to their machine and then let your truck run on this high octane cleaner for 20 minutes. He had pictures of the before and after injectors, valves etc.. A lot of carbon is removed. So here are my 2 questions...
1) Will this method work a lot better than Seafoam or similar cleaners?
2) Will all the junk it removes hurt anything, like spark plugs? I assume you don't need to change the oil afterwards because it cleans the upper end of the motor.
My truck runs great but I know all this junk is building up. Also, the cost is $139 for the cleaning, substaintually more than at dealerships where they use one can of cleaner hooked to your fuel line and then pour another in your tank.