Cooling system problems are the most common reason for mechanical failure. And, they’re largely avoidable. Here’s what you need to know about your cooling system. First, the terms coolant and antifreeze are pretty much used interchangeably. The fluid cools your engine while it’s running, and it keeps it from freezing when it’s cold. Your cooling system is filled with a 50/50 mixture of water and antifreeze/coolant.
So, if you’re topping off antifreeze/coolant, make sure you add the proper amount of each. Distilled water is much better than tap water. Now you can buy pre-mixed coolant so make sure you know what you’re putting in. Two more cautions: first, never add coolant when the engine is hot. This can lead to serious burns. Second, there are many antifreeze formulas. Your Anti-freeze should be compatible with whatever is already in your radiator and coolant reservoir. It is best to Flush The Coolant System. Be careful that you don’t mix different types of anti-freeze because that can create sludge that will clog up your cooling system. Always check your owner’s manual for service recommendations on when to change your coolant/anti-freeze mixture. Or Schedule Your Next Service At Flash.