Quicksilver wrote:
If your intentions are keeping the engine cool, than removing the anti-freeze, is your best bet, unless you live in freezing climates. Fortunately for me I live in Hawaii!
I simply drained all my coolant out and filled the radiator with only water + a little bottle of Amsoil RM125. This thing will scrub and clean every nook and cranny of my coolant system and since I don't experience frezzing temp. there is now no need for anti-freeze.
This can still be very bad if you use the A/C or defrost. The iar travelling over the heater core is well below freezing when the a/c is on. It is possible to freeze the heater core with the a/c.
Red Line with their water wettter (and amsoil with the product you mention), still recommend using about 25% antifreeze to protect against this problem. I'm guessing the systems that shut off the waterflow to the heater core when the heat is set tot cold are most vulnerable to this problem. I don't know the contour system well enough to know if it does this or allows the coolent to flow, but simply redirects the air.
Not a recommended path.
Richard
