1998 Freighliner Century Detroit series 60 water temp problem

Seems normal. Operating range is 190-210 IIRC. My fan kicks on at 200-205 f.

 

Normal operation

 

Normal. If it stays hot, with fan on, radiators plugged or fins are blocked. Really unless it’s 95-100 degrees, loaded heavy, or up a hill. Fan shouldn’t come on at all. High A/C compressor pressure may be causing it. Being a 98, radiator could be getting old, especially if it’s original. Wouldn’t hurt to flush it good, sometime. Clean the fins up on it, and cac, and A/C condenser. Make sure it’s getting good flow. Meanwhile you can rinse it off good with water. First from backside, with engine off. No high pressure, just a garden hose. Then at idle, kicked up on high idle, maybe 1400-1500, with fan on, spray it from front. Sucks all the water through. Buys some time.