My Co-worker also has an Outback, he tells me it is a 2004 LL Bean 3.0 6 cyl..He is having a very rough time with overheating. Here are symptoms: No problems around town, problems at highway speeds. Coolant level is OK, thermostat seems to open as he has heat. Fans come on. Some rust in radiator. His transmission fluid was low and he thought that maybe the fluid was getting too hot and affecting the airflow through radiator because of the proximity of the tranny cooler? Any ideas anyone?