Hi guys,
I was wondering if there is an accepted way of filling up the cooling system with some kind of chemichal, run the car for a while and drain it and flush it again, hoping that this would clean out all the deposits and blocking harmful stuff that makes our cooling system inefficient as time goes on.  It is the first time for me to hear about the "citric acid" solvent and maybe it is the way to go.
Who knows...?
Zoltan