Quote:
Originally Posted by Trey T
I understand the hesitation and it does happen.
I would flush it. It's one of those cheap maintenance. Drain it, run it with distill water for a day, drain it, and then put in new coolant.
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That's probably good advice if you live in Texas, but depending on where in Canada Max lives, it's getting a little late in the season to risk having no freeze protection, even for a day.
Max, if it was going to be problem, I'm pretty sure you would already know and have a big ol' gelled mess on your hands. If that hasn't happened, I think I would leave the flush until next time you change out your water pump or coolant tank, or do some other work on your cooling system.
What I would do is test the freeze point to make sure that you are adequately protected down to the -35 to -40 range and then call it a day.