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You should not use dex cool read on the sight it had caused several engines to overheat an blow including mine
Dex-Cool
Your GM dealer sells a orenge fluid named DEX COOL. You must add a mixture 50% dex cool and 50% demineralized water.
The DEX-COOL coolant with 50/50 mix. It is an orange coolant. if you want to do it exactly how GM says you would have 50% DEX-COOL and 50% de-mineralized water
dex cool the car manual says to only use dex cool
Dex-Cool - From the GM dealer or a Dex-cool compatible alternative
50% distilled water, (less corrosive water), and 50% Dex Cool coolant (made by several different manufacturers). I use an old milk jug and mix 1/2 gallon water and 1/2 gallon Dex Cool to fill as needed. I also recommend flushing a cooling system which uses Dex Cool every 2.5 years, or 40,000 miles (whichever happens first).
A container of dex-cool being stored in the truck has a loose cap or a hole in the container.
I recommend flushing the system and replacing Dex-cool every 5 years or 100K miles.
any dex-cool coolant but you must make sure it say's dex-cool on it.
orange
No. Dex-cool is an engine coolant. Freon (134r) is a gas used in the automotive AC system.