I have found the factory gage to be off a tad. I installed an interceptor gage and found even with a 160 Thermostat that sometime my truck gage creeps up to 200 but once I checked it thru the interceptor gage it was actual running at 185. That damn fatory temp gage is a little off.

 

Yeah, the factory guages are not the most accurate. Mine reads 210 on the dash, but 180 when logging with HPtuners.

 

mine reads about 200 when EFI Live says 194.

I never run my Efans unless im in town.. ive towed with mine on the interstate and never had to turn them on. mine stays at 194-200

 

well i guess it sounds normal then.