Quote:
Originally Posted by cmac2012
Maybe I'm kidding myself but I'm planning to use the stuff for a while, a few hours of driving perhaps and then flushing the system and putting in fresh coolant. Would take off the big hose on the bottom when it's hot which I'm thinking would drain most of the excess gunk.
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If you have a collection at the bottom of the radiator, you wouldn't get much by removing the bottom hose. Reason is that a lot of it will be on the hot side and in the tubes. I don't understand why you want to drain it afterwards. Bars Leak will either work or not. If it doesn't work, you will need to replace the radiator now. If it does work, you will need to replace the radiator at your convenience. The Bars Leak can remain in the cooling system indefinitely. It won't clog your heater core, thermostat or radiator unless they are already nearly clogged.