1. Car radiator is key component of engine system ,his function is to disperse the heat when the coolant enter the radiator. when embient temp is high, fan will start to work and help radiator to do a better job.
2. It’d better to use coolant instead of tap water ,it anyhow would cause the rust, and corrode the radiator, possibly be leaky or block the tubes if we do not use coolant.
3. In winter, we need qualified anti-freezing fluid ,normally it can withstand at least -25ºC.
4. We need to clean up the surface of radiator time to time ,it will help to maintain the cooling efficiency ,make it works longer for us.