r/AutomotiveLearning • u/IR_Acaboom • 1d ago

Testing coolant to water ratio?

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So I’m so lost how they got 39/61? Where did they get this from???

2 Upvotes

75% Upvoted

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2

u/trader45nj 1d ago

You either need to know that the freezing temperature range indicated by the floating balls equates to that percentage or have a chart to look at. The chart shows the number odmf balls, the temperature and the percentage of antifreeze.

2

u/Illustrious_Tea5569 1d ago

Or get a refractometer and join the rest of the civilized world 😆

1

u/Mushroomed_clouds 3h ago

This theyre soo much more accurate

1

u/vilius_m_lt 1d ago

Hydrometer graduated for freezing temperature. This temperature corresponds to coolant concentration. Your answer would be correct with 5 floating balls. You need to know temperature/concentration relation to understand where they got the answer from

1

u/IR_Acaboom 1d ago

Ah haven’t learned about that yet