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1 gal of propylene glycol to 24 gal of water

UBC GL-5G Propylene Glycol Coolant /UnbeatableSale.com

Use the following table as a guide for your antifreeze application.

Solution (% by mass)

10

20

30

40

50

60

Freeze Temp (º F)

26

18

7

-8

-29

-55

Boiling Temp (º F)

212

213

216

219

222

225

table

Courtesy‎ of dudadiesel.com

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Q: How many gallons of propylene glycol protects gallons of water from freezing?
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