How to Clean a Car Radiator. Part of the series: Auto Repair & Maintenance. Most antifreeze is naturally corrosive, and thus it needs to be periodically changed before causing damage that must be cleaned with a flushing agent. Perform a chemical flush on a car's radiator with help from an ASE-certified master automobile technician in this free video on cleaning car radiators.
![](https://i.ytimg.com/vi/ITRthGoUfBI/mqdefault.jpg)