The antifreeze – or coolant – in the engine of your petrol-powered vehicle is somewhat like the air humans breathe. It’s taken for granted until there isn’t any, then bad things happen. Engines seize, ...

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 ...

Consumer Reports has no financial relationship with advertisers on this site. The coolant light glowing blue when you start your car is a warning that the engine isn’t yet up to its optimal running ...

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 ...

The coolant inside your car's engine does more than keep it cool. Although your engine will run fine with regular water, coolant has anti-freeze and lubricating properties to prevent corrosion to ...