What is the normal temperature range for a car's radiator?
1 Answers
An engine coolant temperature around 90°C is considered normal. Most vehicles display engine coolant temperature through either physical or virtual gauge needles, while a few models lack dashboard indicators and only show warning lights when temperatures become excessively high. Both physical and virtual temperature gauges typically share similar needle positioning, usually marked with a 60°C--130°C scale or Cold (C)--Hot (H) indicators. The normal operating range for engine coolant falls between 80°C and 120°C, meaning 99°C is perfectly acceptable. Engine coolant is designed to withstand high-temperature environments with elevated boiling points. Vehicle coolant should be replaced annually, as it serves multiple protective functions: preventing corrosion in the cooling system, inhibiting scale formation, avoiding radiator overheating, and providing comprehensive long-term protection for the cooling system. Cooling system leaks can lead to insufficient antifreeze levels, subsequently causing temperature spikes. If low antifreeze is detected, priority should be given to inspecting for leaks. If no leaks are found, replenish with the identical antifreeze specification immediately. Never use tap water or different antifreeze formulations, as this may cause dilution, sedimentation, and ultimately system failure or mechanical issues.
