I haven't noticed any identifiable life cycle for injectors.... we have
several pick up trucks locally with over 400,000 kms and no verifiable
running problems. Back when electronic injectors hit us full force, the
gasoline of the day was inadequate for keeping injectors clean. During a hot
soak, wax (olefins) would deposit in the injector gumming up the pintle and
restricting the orofices.

Modern gasolines don't appear to have these problems. Our injector flusher
gathers dust and we haven't had any reason to use it.

Good quality fuel filters have a very fine micron rating and, if serviced
regularly, should allow little in the way of harmful articles through. If we
purchase our gas from reputable, high volume outlets (if the fuel truck is
making a drop, I will wait several hours before filling), we reduce our
chances of introducing contaminants to our fuel systems.

I have replaced injectors in the past but (aside from diesel applications)
it isn't a real common requirement.

HTH

"Richard" > wrote in message
news:5Kvhe.1353705$8l.146916@pd7tw1no...
> Is there a life cycle for injectors that needs to be considered or do they
> just need to be cleaned (injector flush)? I imagine that a fluid (gas)
> carries microscopic abrasives but can see that the wear is such that only
> after a million miles one would need to think about replacement. Is there
a
> suggested replacement interval?
> Thanks
>
>
> --
> Richard
>
> '94 GT 'vert
> Under Drive Pulleys
> Transgo HD2 Reprogramming Kit
> High Stall Torque Converter
> 4:10 Gears
> Gripp Sub Frame Connectors (welded)
> FRPP Aluminum Drive shaft
> FRPP M5400-A Suspension
> Laser Red
>
>