How to Read Antifreeze Tester Balls

An antifreeze tester is a liquid for car or bike engines, and it’s essential as it keeps your vehicle at the perfect temperature. These antifreeze testers generally work by measuring the density of the chemicals inside the coolant. The chemicals are mostly ethylene glycol which is divided into organic acid technology and silicate.

Here, I will discuss the ins and outs of the antifreeze tester and help you learn how to read antifreeze tester balls.

The importance of an antifreeze tester

Usually, motorcycle owners use it to have an idea about the freezing point of the antifreeze of their vehicle’s engine. It can be the best thing for the people interested in automotive vehicles and “I can do it myself “type activities.

Imagine you need to go somewhere very quickly, but when you’re trying to start your car or bike, you find that it’s not starting at all because the engine has frozen; yeah, nobody wants to be in these situations. Especially if you’re a motorcycle owner, the antifreeze tester balls can warn you about the upcoming freeze in the winter season and the boiling points in the hot summer season.

Also, If you live in the US, you probably know that in the winter season, temperatures go down a lot like most of the times it’s below or near 0 degrees Celsius (32 degrees Fahrenheit), which is not very good for any vehicle engine. It’s essential to use a suitable antifreeze tester too.

Why is it essential to get the right antifreeze tester?

Before knowing the using process of an antifreeze tester, it’s crucial to select the right ones. You probably know that there are different brands of antifreeze tester, and each one works uniquely.

In fact, some of them use floating balls one, and it’s undoubtedly the best one as it warns the owner of the vehicle about the freezing points of your engine. It can also show you dots and numbers that help get a result you wished for; we’ll get to that in a moment. So, stay tuned.

How to test your engine with an antifreeze tester

As I’ve said above in the article, some antifreeze testers contain floating balls, and generally, they are five various colored balls, which are made of plastic and come with a glass tube. The tube will have some temperature marks on the see-through segment. Just a soft reminder, these antifreeze testers are always available for you to buy at any automotive parts store. Also, if you’re anyhow worried about your antifreeze not being pre-mixed, don’t forget that it just costs around 5 dollars. Now let’s go to the steps of how to test your engine with an antifreeze tester –

  • First of all, you need to pressure the bulb, and that will soak up the antifreeze.
  • You have to fill up the tube with liquid, and don’t forget to put your fingers upon the end.  Then you will see the balls are starting to collect some air bubbles around them, which you will need to shake off.
  • After finishing the shaking process, now take a good look at the balls; how many of them are floating? The quality of your antifreeze tester will depend on the position and the numbers of these balls. That’s how you will be able to tell how good or bad your car/bike is against freezing.You should add more coolant if you see it’s a bit low the first time you test it. Now, these two things will be crucial as we advance-
  1. Check antifreeze – Water mixture rate with your antifreeze tester.
  2. The liquid level – To assure that it’s not going down again.
  • Not to mention the fact that you should wait for at least 2 or 3 days before rechecking your coolant. If you see that the liquid is lower after 2 or 3 days, you should seek help from a mechanic or expert because you might have a leak.
  • While you recheck your fluid, ensure that the water and antifreeze mix ratio is accurate.

By the way, I’ve just told you to antifreeze testers using process. Now, I’ll let you know how to read the antifreeze tester balls. If you are interested about headlight sealant glue then you can also read this article.

How to read the antifreeze tester balls

It’s not hard at all to read the tester balls if you do it correctly. It will show you the way to read the results.

By the way, it’s better to change your coolant if it’s more than 2/3 years old because the older an antifreeze tester gets, the less efficient it becomes. Also, there usually are marking on the tube to help you out; nevertheless, I’ll explain the way of reading the antifreeze tester balls-

  • The first ball is the cycle meter, or you can say the halo meter.
  • Then the next ball shows you the level, then its condensation/density, then its mass, and the last and fifth ball represents weight. Your job is to read the halo meter (1st) and density (3rd ball).
  • After reading the first and third ball, use volume one (4th ball) as an obscure coefficient. Then search the double of the first and third ball inseparably. Then by using that result as the unknown, multiply the second and fifth ball together.

After all of this, allocate the result to the integration you did with the halo meter ball (1st one) and condensation ball (3rd one). In this way, you will be able to identify the general floating range of the balls. That means you will now be able to tell about needing more antifreeze or not.

If more balls float at the top, then you can say your vehicle is safe against freezing. Also, more than enough water in your cooling system will cause fluid freezing, and an extreme level of antifreeze will also harm your vehicle’s engine badly. If you want to know about Mazda battery then you can read this article.


Okay, after learning how to read antifreeze tester balls and other things regarding antifreeze testers, you might agree that the antifreeze tester is vital for your car and bike. Just be careful and never forget to keep the engine off while testing with your antifreeze tester balls. Always have a safe and happy journey with your vehicle’s healthy and fresh engine.

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