Is it normal for Mercedes-Benz c260 to run 90 miles at high speed and the water temperature is 85 degrees?

It is normal for Mercedes-Benz c260 to run 90 miles at high speed, and the water temperature is 85 degrees. According to relevant data, the water temperature of Mercedes-Benz c260 in the water thermometer is about 85~95 degrees. After the car starts, the engine coolant temperature will rise rapidly after a period of time. When the speed reaches 90 mph, the temperature will generally remain at around 90 degrees.