Originally Posted By: Kestas
How long do you hang on to your cars?
My experience is quite the opposite. I find that regardless of how well I maintain the coolant, radiators need to me replaced at the 10-15 year mark.
400K KM or more...
I have also saved plugged heater cores on other peoples vehicles by disconnecting the heater core hoses, and filling the heater core with CLR & Boiling water at a 1:2 ratio (more water), for about 40 minutes, then I blow it out by hooking up compressed air to one of the hoses, rinse with boiling water, and refill again. Usually only takes 3 times and the heater core is clean and can be reused.