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					Originally Posted by  pawoSD
					 
				 
				Those engine temps are too high, I'd say you probably need a new radiator or thermostat.  In my case it was the radiator...temps dropped down significantly.  In those same conditions as you were in, my car barely hits 80C, with my old filthy radiator it'd have been around 88-90C.
  
			
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 The variable that you're missing is the ambient temperature.  At temperatures below freezing, the old radiator will do perfectly fine to get rid of any heat asked of it.  A brand new radiator will run the identical engine temperature.
Now, if the ambient temperature is 80F., you've got a completely different set of variables.  You can condemn the radiator if you wish under these circumstances if the engine runs hot.
In this case, the only possibility is an error in the dash gauge or a thermostat that needs replacement.  I'd place my bet on the former due to personal experience with the SD.