I use the Prestone flush kit (where you put a plastic tee in the heater hose and sttach your graden hose to it for a good flush), which I think works great.
I also think that using distilled water only is a great idea. However, for the life of me I have never been able to get a car's cooling system to completely drain, so that I could start fresh with only distilled water. What I end up doing is after the water has been coming out clear for a while, I let it drain out of the petcock until it's not draining any more. Then I add half the coolign system capacity in A/F and top off with H2O. I've run into several instances where I couldn't even get the full amount of A/F in there, even once the T-stat opened, and I basically filled up the overflow with pure A/F knowing that it will eventually mix in over a couple of driving cycles.
So my question is, how do you drain a system bone dry to use pure distilled water?
I also think that using distilled water only is a great idea. However, for the life of me I have never been able to get a car's cooling system to completely drain, so that I could start fresh with only distilled water. What I end up doing is after the water has been coming out clear for a while, I let it drain out of the petcock until it's not draining any more. Then I add half the coolign system capacity in A/F and top off with H2O. I've run into several instances where I couldn't even get the full amount of A/F in there, even once the T-stat opened, and I basically filled up the overflow with pure A/F knowing that it will eventually mix in over a couple of driving cycles.
So my question is, how do you drain a system bone dry to use pure distilled water?