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.
Very interesting things happen (thermal shock) when you hit hit valve seats/castings with 'ultra-cool coolant'!!
Hey Terry I experienced thermal shock one time at the Gym. I jumped from the ice-pool straight into the jacuzzi, what a JOLT!!!
POOR ENGINE!!!!!!!!
