What is the normal temperature range for a truck's coolant?

1 Answers
Ophelia
07/30/25 8:19am
Truck coolant temperature is generally normal within the range of 65℃ to 95℃. Below are relevant explanations about the causes of high coolant temperature in trucks: 1. Insufficient or improper coolant selection: Since diesel engines operate at extremely high internal temperatures, the requirements for coolant are quite strict. If there's a severe shortage of coolant, it cannot promptly dissipate the heat generated by engine components, leading to overheating. 2. Cooling fan malfunction: When the vehicle operates at high speeds, the generated heat cannot be effectively transferred to the antifreeze, affecting heat dissipation. This subsequently causes the antifreeze temperature to rise, potentially leading to boiling over and other issues.
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