Prestone Command Supplemental Coolant Additive is formulated to protect coolant systems from corrosion by replenishing inhibitors, prevent rust and scale buildup and control pH balance with chemical ...

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 ...