Can You Add Tap Water to a Van's Radiator?

1 Answers
DelaneyRose
07/29/25 10:35am
It is not recommended to add tap water. Tap water contains many minerals that, when heated and evaporated, form scale deposits on metal surfaces. If scale builds up inside the radiator, it will affect the heat dissipation efficiency, leading to overheating and "boiling over." Therefore, when the radiator is low on water, do not add tap water. Below is some relevant information about the radiator: 1. Structure: Mainly composed of the radiator core, water pipes, cooling fins, upper tank, and lower tank. 2. Function: The car radiator, also known as the cooling radiator, is a key component in the vehicle's cooling system. Its role is to dissipate heat—coolant absorbs heat in the water jacket, flows to the radiator to release heat, and then returns to the water jacket in a cycle to regulate temperature.
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