Coolant is a 50/50 combination of water and antifreeze. Like motor oil, coolant flows through internal combustion engines to absorb and remove heat, prevent corrosion, and help the motor function at ...

Question: My mother recently bought a used 1999 Daewoo Nubira. It looked shiny and new, and it ran pretty well. When we inspected the engine compartment, we noticed that the coolant was brown and had ...