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Discussion Starter #1
How many gallons of liquid do I need for a radiator flush. I want to buy the 100% antifreeze and mix it with distilled water on my own to save a couple bucks. I couldn't find how much I need for a 98 cobra, but I assume its the same as any 4.6l.
 

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I wanna say 13 quarts.. but i could be wrong. And if you mix it with water you have a chance of freezing up your block in the winter.
 

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Bamman said:
I wanna say 13 quarts.. but i could be wrong. And if you mix it with water you have a chance of freezing up your block in the winter.
Thanks Bamman. Pure antifreeze has a higher freezing point than a mixture of 50/50 or 70/30 and living in southern Cali my car won't see below 55 unless hell freezes over. I'm gonna do 50/50 so if its 13 quarts I'm looking at 7 then. Hopefully someone just did this and can say for sure.
 
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