It all started so innocently: You're puttering around the garage on a crisp fall morning — checking for harmful low tire pressure and things like that — when you notice that your car's coolant tank is ...

As engines get very hot, coolant helps distribute heat to help prevent overheating and engine damage. It also adds antifreeze protection and acts as a lubricant for some of the engine’s components. If ...

Visually inspecting a vehicle's coolant overflow reservoir can provide a wealth of diagnostic information. Savvy service personnel routinely check the coolant recovery “bottle” on every vehicle that ...

Several components in your car hold coolant, often called antifreeze, and any of them can get a hole or develop a leak. If your car loses too much coolant, its engine could overheat. Coolant is also ...