like what ?Are you taking them out to clean, or asking about a fuel additive?
is it just for diesel ? because my rangie is a hse !Millers Diesel additive seems to make my vehicles run quieter and smoother. I's about 8 squid a bottle and lasts ages if you do exactly what it says on the tin.
what do you think about wynns ? i can find it nearby ...Yes, that's for diesel injectors. I would go with either Redex Injector cleaner, or Wynns injector cleaner. Empty the bottle into your fuel tank then fill it to half full and drive normally. Next time you fill up all will be fine.
your analysis is so logicalHave a look at this topic i have just done
http://www.landyzone.co.uk/lz/f10/different-fuels-58606.html
At the end of the day, will wynns redex etc, take carbon deposits off? carbon is pretty tough stuff, but i know it can be dissolved but will it get all of it, maybe a good start is to first take the injectors out, clean them of all deposits, and then start to use an additive, to keep them that way, additives are probably cleaning other parts you cant get to as well, but if you look at the link i put up, that's already being done (with the right fuel)