Injector cleaner

your dead right I think steve. If the bloody injectors need cleaning or are due, do them properly. If they arent due or there is no reason to do them, then leave them.
Its not going to fix a leaking or pitted nozzle.
Same with most flushing etc additives. They may make YOU feel better, but are no substitute at all for doing it properly if it is needed.

Well yeah, I have been told by a Fuel injection workshop when I took a car in with blocked injectors, tuned out to be the fuel filter as well so they changed that and said they could pull all 6 injectors and clean them or I could go and buy a $10 bottle of injector cleaner and 90% of the time problem solved.

If it had blocked injectors how would you even get it started to run the injector cleaner thru it?
If it was a bad fuel filter the crap would have been dust dirt etc. Dont think injector cleaner would do much for that.

They obviously were not 100% blocked.

The car would idle ruff and surge when at speed. Replaced leads and plugs helped but it was still there, Went to a fuel injection place and they changed fuel filter first and it ran better but was still a little ruff, then said he could pull and clean the injectors or I could run some injector cleaner throe with a tank of fuel.

Ran the injector cleaner and within 100k’s it was running smooth agene.
I think you will find most workshops put in a bottle of the stuff at service time anyway.

I put a treatment of RedX throe my car’s fuel tank every 10,000k’s

To say treatments do nothing is a bit broad, have been told by a Auto engineer/ Ex Holden workshop manager/ Ex Race car driver to use Lifter free up before, I like to think the guy has some idea about Engines.

1; the thread was regarding a diesel, not a petrol engine. Diesel injectors suffer more due to the fact that combustion begins very close to the nozzle where in a petrol engine combustion begins at the plug.

2; the thread was to do with fuel additives I thought.

However I dont think I said they do nothing. I said if they are due for service, or there is reason to think they are due for service there is no substitute for doing it properly.

Who would be happy if QANTAS or the Tassie Ferries just tipped a bottle of something in the tank when they were due for a service or running rough?

you should be aware that most injector cleaners contain an additive to increase the cetane rating and hence increase the power. After it has been diluted through a few tankfulls that effect disappears but you only notice the intial surge of power not the gradual decrease

Thanks all, I don't have any obvious problems so I think I'll leave them alone.

FITCH