there is one very important intruction on the bottle which must be obeyed: if one dossage (correct for your cooling system size) doesn't fix the problem, don't just start adding more and more! That's when people end up with everything in the cooling system clogged, except the leak.

And I agree with LarryB about the greatness of Wendell Scott. His biography formed the basis for the movie _Greased Lightning_ about 30 years ago. I wonder if it's available on DVD or VHS?