That may make you wonder, “Is coolant and antifreeze the same thing?” Quick answer: No. Coolant is diluted antifreeze (with water) that regulates engine temperatures. To help you out, we’ll explain the difference between coolant and antifreeze in depth. We’ll also brief you on when and how to top up or flush the fluid.

https://www.autonationmobileservice.com/i/blog/is-coolant-and-antifreeze-same/