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Old 12-02-2012, 04:40 AM
x3brian x3brian is online now
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Location: Sacramento CA
Join Date: Jan 2011
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Mein Auto: X3
A full drain including the block is between 9 and 10 quarts or 2.5 gallons. So I would get 2 gallons of coolant to be on the safe side.

With that said when I drained my n52 I only needed a little less than 8 quarts but I didn't pull the block drain. I was able to use only 1 gallon mixed with distilled water to yield 2 gallons.
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