So I decided to take the long way to work since I got up an hour earlier than I needed to... Got up to about 50 mph cruising and the temp just kept climbing. Hit 260° and yelled at me right when i got into the parking lot, so after it cooled off i went to check the level and found some nasty brown goo on the bottom of the radiator cap... looks like a flush is in order, and the LIM and elbows are already in the mail. What i wanna know is how did you do it? And who had what kind of nastiness where? I want all of the horror stories.