Rick's Free Auto Repair Advice

Antifreeze versus Coolant

Is there a difference? Antifreeze versus coolant?

Antifreeze versus coolant—almost the same, but not quite

In some ways, the discussion about Antifreeze versus Coolant is just semantics since both liquids prevent freezing and protect against cooling system corrosion. Ten years ago the terms were interchangeable, but not anymore. Here’s what’s changed

Antifreeze is a concentrate and must be diluted with distilled or de-ionized water before it can be used as a coolant. Undiluted antifreeze cannot be used as an engine coolant. The most popular dilution rate is 50:50

Coolant, on the other hand, is antifreeze that’s been diluted by the manufacturer. In other words, you can pour it right into your engine.

As soon as you dilute the concentrated antifreeze with water, it becomes coolant. See how easy that was?

Posted on by Rick Muscoplat

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