Seems like everyone has an idea on flushing a radiator. Since it is not overheating I agree with Bart. Just drain it and go. Change hoses, don't forget the heater hoses, and thermostrat and forget it. I wouldn't back flush it, put chemicals in it or take it to a radiator shop. Like Doc said that old radiator has 27 years of junk built up in it. Everytime I have tried "clean" out an old working radiator I have caused it to leak and it has cost me more money to try and fix it than it would have if I had just went out and bought a new one to start with. Now if it is over heating it is different story. My two cents worth. Terry ------------------------ Yahoo! Groups Sponsor --------------------~--> Help save the life of a child. Support St. Jude Children's Research Hospital's 'Thanks & Giving.' http://us.click.yahoo.com/6iY7fA/5WnJAA/Y3ZIAA/YtqqlB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/BaadAssGremlins/ <*> To unsubscribe from this group, send an email to: BaadAssGremlins-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/