Who is correct regarding the impact of mineral deposits in a radiator?

The correct response is grounded in the understanding that mineral deposits can significantly affect the performance of a vehicle's radiator. Technician B likely highlights the issue that these deposits can lead to reduced heat exchange efficiency within the radiator. When minerals accumulate, they can form scale, which inhibits the flow of coolant and thereby creates hot spots within the system. This impairs the radiator's ability to dissipate heat effectively, resulting in potential overheating of the engine.

In contrast, it’s important to note that while Technician A may have shared information that is partially relevant, it did not accurately address the specific consequences of mineral deposits. Therefore, only the insights provided by Technician B regarding the negative impact of mineral deposits on radiator functioning are deemed correct. This distinction underscores the importance of proper coolant maintenance to prevent the adverse effects of mineral buildup and to ensure optimal cooling system operation.