You might have taken me wrong..
I never claimed that ,it is as good as Honda or caltex coolant.but it does it's job decently.it has very less life as compared to caltex,even the bottle mentioned to change it after 20k KMS.
Plus as dada @Xulfiqar says,one has to thoroughly clean cooling system,including heater core in order to use caltex,otherwise it will become a gel....
That's why guard is the best(as compared to tap water).plus guard walay are well connected with khalai makhlooq
what else we can want?????