RW> The overflow tank is vented to atmosphere. That's where anything that   
   RW> would have blown the cap off went to. Did you check the road that she   
   RW> traveled for signs of 'goop?   
      
   I didn't really notice anything on the road, but there was a puddle of the   
   goop under the truck where she pulled over.  It was running down the side of   
   the motor, grill, bumper, underside of the hood, etc.  Smoke was also   
   everywhere from it getting on the engine and exhaust manifold.     
      
   She called me and was on the phone not soon after it happened.  She told me   
   the truck was smoking really bad and smelled.  I asked her what the temp gauge   
   showed - and once she told me it was close to the red line, I just told her to   
   pull over when you can and park it and I'll meet you there.   
      
   At that point, the upper hose must have already been snapped.   
      
   - Mark   
      
   --- WWIVToss v.1.50    
    * Origin:  http://www.weather-station.org * Bel Air, MD -USA (1:261/1304.0)