[urq] injector cleaners & complete fuel system cleaners

[Johan H]

Hi guys,

what is you oppinion of injector or fuel sysytem cleaners which you pour in  
the fuel tank,  such as the CRC injector cleaners or STP Injector Cleaners?

I've heard that these dissolve the dirt just as they should. But that the 
dirt bits then block off the whole system?? Has anyone BTDT? I actually 
already bought STP injector cleaner but now I'm a bit hesitant if I should 
use it or not...

Cheers,
Johan Hisinger
Helsinki, Finland