Injector cleaner

[VYMAD]

Just wondering what peoples thoughts/experiences are with this?
I have used the nulon brand from time to time in the VY, always weaker than reccomened and at fewer intervals than are reccomended, as I always use 95 octane anyway. I understand that injector cleaner won't clean already fowled injectors but will keep clean ones in good order. So has anyone had bad experiences with it stuffing o2 sensors, cats, etc? Or anything else?

[sweefu]

Hey mate,
every 5000k's when i service my car i run the Nulon injector cleaner also, with a tank of premium petrol. I'm not afraid to use more than recomended though i try to stick close to it, i think it makes a difference with the overall running of the car.
My brother often uses at least what is recomended, sometimes more without any worries.
Cheers.

[nathanVY]

when I got my VR the injectors were pretty noisy, ran a few cheapo brands of injector cleaner and it hardly improved. then I used this brand called wurth and it must have smashed all the crap off the inside, big improvement for me.