Once again, Dr. Fred T is right.
The Aluma-Seal is GREAT. I put some in a radiator I bought from Ebay a few months ago. Radiator was NOS, but had a dent that apparently broke some of the cores and there were leaks EVERYWEHRE. Garage was full of anti-freeze in 2 hrs!
One bottle of Aluma-seal later, the leaks are history. Driven several hundred miles since. No sign of leaks whatsoever.
-ftyler
