Hi all! I just wanted to give even more emphasis to to the word "reliable" used in DMC Joe's advice on leak testing. <taking your DeLorean to your local (reliable) auto repair facility and ask them to perform a cooling system pressure test> Over-pressurizing a system like the "D" can blow the crimped-on plasic end-caps right off of a radiator that may have had years of normal use left in it. A relable/reputable shop will not use excessive pressure - others make a living off of it. Gary Hull http://IN2TIME.com