I seen a video of a guy that cleaned his injectors by removing the fuel line and hooking up a 1 gallon jug with GM’s injector cleaner and diesel fuel, letting it idle for for one hour..

Any thoughts on this procedure?? My next door neighbor is a diesel mechanic ( big trucks ), he and another diesel mechanic said not to bother with it.

I have 400,000 miles on my rig and have never touched the injectors..I do use a fuel system/injector cleaner starting about 100,000 miles ago.

Thoughts..