Systems and methods for a cooling system of a vehicle engine

A cooling system, comprising;

• an engine cooling circuit configured to circulate a coolant solution through an engine;
• a vehicle interior heating circuit fluidly coupled to the engine cooling circuit;
• a separation unit adapted with a mechanism for extracting antifreeze from the coolant solution, the separation unit fluidly coupled to the engine cooling circuit at an inlet end of the separation unit;
• and
• a reservoir for storing concentrated antifreeze, the reservoir fluidly coupled to the separation unit at an outlet end of the separation unit and also fluidly coupled to the vehicle interior heating circuit, the concentrated antifreeze having a higher concentration of antifreeze than a concentration of antifreeze of the coolant solution.