Joined: Jul 2010
Location: Gatineau, Quebec
Coolant change is easier to do than changing brake fluid. My take is that unless you know the coolant is particularly old and dirty dont use a chemical flush cleaner. Just keep draining and filling with clean water until it comes out clean. Takes about 5 or 6 times. You drain then put plug back in, fill up, start the car with heater on high setting, let it run until thermostat opens, then after a couple of minutes, turn off, drain and repeat. Full instructions can be googled or found on youtube.
Ideally you use distilled water. Then based upon the total system capacity you add the proper amount of pure coolant (not the pre-mix) so that your system has a 50% mix. Can be higher in a cold climate, less in a hot climate, but 50% is pretty standard. It helps if you have a bunch of empty water jugs or windshield washer jugs to dispose of it, at an approved spot such as Canadian Tire. You do have to make sure you are using appropriate fluid. Prestone long life for all makes is fine to use. If you dont want to do a full change, you can just drain the rad, and then fill up with pre mix to partially restore the corrosion inhibitors. Its in the service manual.